Carex gotoi

Carex klamathensis

Carex cumulata, common names Clustered Sedge, Piled Sedge, and Piled-up Sedge is a species of Carex native to North America. It is a perennial.

Carex lasiocarpa

Carex formosa, common name handsome sedge, is a Carex species that is native to North America. It is listed as endangered in Minnesota, New Jersey, and Pennsylvania, as threatened in Connecticut, Massachusetts, New York, and Wisconsin, and as presumed extirpated in Ohio.

Carex hystericina

Carex lyngbyei

*Carex canescens var. sphaerostachya (Tuck.)

Carex castanea, common names chestnut sedge and chestnut-colored sedge, is a species of Carex native to North America. It is listed as endangered in Connecticut, Massachusetts and New Hampshire.

Carex lacustris, known as lake sedge (lucastris is from the Latin lacus, or lake), is a tufted grass-like perennial of the sedge family (Cyperaceae), native to southern Canada and the northern United States. C. lacustris us an herbaceous surface-piercing plant that grows in water up to 50 cm (1.6 ft) deep, and grows 50–150 cm (1.6–4.9 ft) tall. It grows well in marshes and swampy woods of the boreal forest, along river and lake shores, in ditches, marshes, swamps, and other wetland habitat. It grows on muck, sedge peat, wet sand or silt, in filtered or full sunlight.It's a common sedge that dominates many native wetlands, or intermixes with other sedges and grasses, and its ability to spread by rhizomes makes it a good colonizer for a large area.

Carex lemanniana

Carex intumescens, also known as bladder sedge, is a species of Carex native to Canada and the eastern United States.

Carex lyngbyei is a species of sedge known by the common name Lyngbye's sedge. It is native to the west coast of North America from Alaska to California, where it "is the common sedge of the Pacific coastal salt marshes." It is also known from Greenland and Iceland. It prefers to grow in silty sediment rather than sand and in habitat with brackish water, such as salt marshes. This sedge produces stems 25 centimeters to well over one meter tall from a network of long rhizomes.

Carex haydeniana is a species of sedge known by the common name cloud sedge.It is native to western North America from British Columbia and Alberta south to California and New Mexico. It grows in moist, rocky areas in subalpine and alpine climates.

Carex douglasii is a species of sedge known by the common name Douglas' sedge.

Carex lepida is a species of plant in the Cyperaceae family. It is endemic to Ecuador. Its natural habitat is subtropical or tropical moist montane forests.

Carex comans is a plant species in the sedge family, Cyperaceae, endemic to New Zealand. It is used as an ornamental plant, growing in clumps of bluish green leaves with heights of 25–35 centimetres.

Carex castanea

Carex inops

Carex hirta, the hairy sedge, is a species of sedge found across Europe. It has characteristic hairy leaves and inflorescences, and is the type species of the genus Carex.

Carex ericetorum

Carex fluviatilis

Carex dissita

Carex griffithii

Carex colchica

Carex brunnescens, commonly known as the brownish sedge, is a species of sedge in the genus Carex.

Carex exilis, common name coastal sedge or meager sedge, is a species of Carex native to North America. It is listed as an endangered species in Connecticut by state authorities.

Carex globularis is a perennial species of sedge in the family Cyperaceae native to damp forests and wetlands of Asia and Eastern Europe.

Carex livida

Carex collifera

Carex disperma is a species of sedge known by the common name softleaf sedge. It is native to much of the northern Northern Hemisphere, from Alaska to Greenland, most of Canada and the contiguous United States, and across Eurasia.

Carex crawfordii

Carex hirtifolia, the pubescent sedge, is a species of sedge native to north-eastern North America. It is the only species in Carex section Hirtifoliae. The entire plant is distinctively covered soft hairs.

Carex grayi, commonly known as Gray's sedge, is a species of flowering plant in the Cyperaceae family.

Carex magellanica subsp. irrigua is a perennial species of plants in the family Cyperaceae native to Holarctic wetlands. Common names include poor sedge, bog sedge and boreal bog sedge.

Carex geyeri

Carex longebrachiata, commonly known as Australian sedge or drooping sedge, is a plant species in the sedge family, Cyperaceae. It is native to Australia.

Carex mariposana is a species of sedge known by the common name Mariposa sedge.

Carex gandogeri

Carex geyeri is a species of sedge known by the common names Geyer's sedge and elk sedge. It is native to western North America from British Columbia to California to Colorado, where it grows in dry areas in mountain meadows, grasslands, and open forest. This sedge produces scattered tufts of stems connected by a network of long rhizomes. The stems are triangular in cross-section and approach half a meter in maximum height.

Career Minister

Carex mollicula

Carex douglasii

Carex filifolia

Carex leporinella

Carex fragilis

Carduus firmus

Carex fracta

Carex interior is a species of sedge known by the common name inland sedge. It is native to much of North America from Alaska to northern Mexico to the mid-Atlantic United States. It grows in wet habitat, most often in calcareous soils. This sedge produces clumps of stems approaching a meter in maximum height, with a few leaves at each stem. The inflorescence is an open array of star-shaped spikes of flowers covered with gold scales. The fruit is coated in a toothed, red-tipped perigynium.

Carex diandra is a species of sedge known by the common names lesser tussock-sedge and lesser panicled sedge.

Carex luzulifolia

Carex lanceolata

Carex concinnoides is a species of sedge known by the common name northwestern sedge. It is native to western North America from British Columbia to California, where it can be found in moist or dry habitat, often in woodland and forested slopes, on silty and clay soils. This sedge produces loose clumps of stems up to about 35 centimeters in maximum height from long rhizomes. The leaves are thick but narrow, sickle-shaped, and pale green in color.

Carex concinna is a species of sedge known by the common names low northern sedge, northern elegant sedge, beauty sedge, and beautiful sedge. It is native to northern North America, where it occurs across Canada and in high elevations in the northern contiguous United States.This sedge produces loose or dense clumps of triangular stems up to about 20 centimeters tall.

Carex laeta

Carex interior

Carex canescens L. (syn. C. cinerea Poll.; C. curta Gooden.) is a perennial species of plants in the family Cyperaceae growing in damp forests and wetlands. It is widespread across much of Europe, Asia, Australia, New Guinea, North America, and southern South America.SubspeciesCarex canescens subsp. canescens – Europe, Asia, Australia, North America, New GuineaCarex canescens subsp. disjuncta (Fernald) Toivonen – eastern Canada, eastern United StatesCarex canescens var. robustior Blytt ex Andersson – Argentina, Chile, Falkland Islands

Carex micropoda

Carex longebrachiata

Carex hirtissima

Carex mertensii

Carex colchica is a species of perennial plant in the family Cyperaceae.

Carex biltmoreana

Carex jamesonii

Carex colensoi

Carex crandallii

Carex cumulata

Carex hebetata

Carex cinerea

Carex chosenica

Carex hassei is a species of sedge known by the common name salt sedge. It is native to western North America from British Columbia to Baja California to New Mexico, where it grows in moist places, such as meadows.

Carex ligata

Carex festucacea or fescue sedge is a species of sedge that lives in eastern North America. It has been described as "a soft, gray green, wisp, to 2', with narrow leaves and somewhat taller stems, topped by an interrupted spike, with lower spikelets, shaped a bit like an overflowing ice cream cone. The spike axis is often arched at the summit, but the alternating spikelets around the axis create a zig zag appearance. The seed sacs have a humped shoulder."

Carex capitata is a species of sedge known by the common name capitate sedge. It has a circumboreal distribution, growing in wet places in boreal forests and mountain meadows in alpine climates.

Carex disticha

Carex gilesii

Carex mckittrickensis

Carex cespitosa

Carex formosa

Carex luzulina

Carex brevipes

Carex kobomugi is a species of sedge, known as the Japanese sedge or Asiatic sand sedge, that lives in sandy coastal areas of eastern Asia, and has become an invasive species in the north-eastern United States.

Carex collinsii, common name Collins' sedge, is a species of Carex native to North America. It is listed as a special concern species and believed extirpated in Connecticut. It is listed as endangered in New York, as threatened in Pennsylvania, and its historical range included Rhode Island.

Carex canescens

Carex hassei

Carex cinnamomea

Carex leporinella is a species of sedge known by the common name Sierra hare sedge.

Carex cusickii is a species of sedge known by the common name Cusick's sedge. It is native to Northwestern North America from British Columbia to California, and in Utah, where it can be found in several types of wet habitat, such as marshes, mountain meadows, and ditches. In its range it is most common in the Cascade Range and areas west.

Carex laevigata

Carex livida is a species of sedge known by the common names livid sedge and pale sedge. It has a scattered, interrupted circumboreal distribution, occurring throughout much of Eurasia and northern North America. It also occurs in Panama and South America. It is extirpated in California.This sedge forms small clumps of stems up to 50 to 55 centimeters tall. The stiff, leathery leaves are a pale, waxy blue-gray and have channels on their surfaces. The inflorescence contains separate pistillate and staminate spikes. The plant spreads mostly by sprouting from its rhizome, but it also produces seed.This plant grows in wet substrates with groundwater at the surface. The soils are often calcareous and rich in nitrogen. It can typically be found in fens and bogs with sphagnum mosses and other sedges.

Carex manca

Carex curta

Carex extensa

Carex lutea is a rare species of sedge known by the common names golden sedge and sulphur sedge. It is endemic to North Carolina, where it is known only from Pender and Onslow Counties in the Cape Fear River watershed. There are nine populations. The plant was discovered in 1991 and described to science as a new species in 1994, and it has not been thoroughly studied nor completely surveyed yet.

Carex fascicularis, commonly known as tassel sedge, is a species of sedge of the Cyperaceae family that is native to Western AustraliaThe monoecious and rhizomatous perennial grass-like sedge has a tufted habit and typically grows to a height of 0.6 to 1.5 metres (2 to 5 ft). It blooms between September to November producing green flowers.It is found in swamps and along creek and rivers throughout a large area of the Peel, South West and Great Southern regions where it grows in black peaty-sandy soils.

Carex emoryi, the riverbank tussock sedge or Emory's sedge, is a plant species native to Canada, the United States, and the states of Chihuahua and Coahuila in northern Mexico.Its natural habitat consists of the banks of rivers and streams. It also occurs on sand and gravel bars in streams. It spreads by means of underground rhizomes. The species is sometimes utilized as a border along retention ponds, for erosion prevention and maintenance reduction along shorelines.

Carex cespitosa is a species of perennial sedge of the genus Carex which can be found growing in tufts (caespitose), as the Latin specific epithet cespitosa suggests. The name is synonymous with Carex cespitosa f. retorta.The species is able to hybridise with the common sedge (Carex nigra) to produce a plant 20–50 centimetres (8–20 in) tall, flowering from May to June.

Carex ericetorum, known as rare spring sedge, is a perennial species of plants in the sedge family Cyperaceae native to central Europe and western Asia growing on calcareous soils in short grassland.

Carex distans

Carex chichijimensis

Cardiovascular and Interventional Radiology

Carex crawfordii, common name Crawford sedge, is a species of Carex native to North America.

Carex echinata

Carex geyeri is a species of sedge known by the common names Geyer's sedge and elk sedge. It is native to western North America from British Columbia to California to Colorado, where it grows in dry areas in mountain meadows, grasslands, and open forest. This sedge produces scattered tufts of stems connected by a network of long rhizomes. The stems are triangular in cross-section and approach half a meter in maximum height. The inflorescence is composed of a cluster of staminate flowers and a cluster of pistillate flowers separated by a node.

Carex filifolia is a species of sedge known by the common name threadleaf sedge.

Carex conspecta

Carex buxbaumii is a species of sedge known by the common name club sedge or Buxbaum's sedge. It is native to much of the northern Northern Hemisphere, from Alaska to Greenland to Eurasia, and including most of Canada and the United States. It grows in wet habitat, such as marshes and fens. This sedge grows in clumps from long rhizomes. The stems are 75 to 100 centimeters in maximum height. The leaves are narrow and small. The inflorescence has a bract which is sometimes longer than the spikes.

Carex klamathensis is a rare species of sedge known by the common name Klamath sedge. It is known from 15 or fewer populations in southern Oregon and three populations in the Klamath Region of northern California. It was described to science only in 2007. Its habitat includes fens and other wet habitat, on serpentine soils.This sedge grows from a long rhizome bearing clumps of stems. The leaves are glaucous, 2–6 mm wide, with papillae between and sometimes over the veins.

Carex limosa is a species of sedge known by the common names bog-sedge, mud sedge and shore sedge.

Carex breweri

Carex foenea

Carex mariposana

Carex diandra

Carex gholsonii is a plant species native to Florida, Georgia, Alabama, North Carolina and South Carolina.Carex gholsonii grows in wet places such as marshes, floodplains, stream banks, etc. It is a monoecious, perennial herb up to 75 cm tall. Leaves are green, up to 30 cm long. Pistillate and staminate flowers are borne in separate spikes on the same plant. Perigynia are ellipsoid, olive to brownish-green, up to 4 mm long with a beak up to 0.5 mm long. Achenes are up to 3 mm long.

Carex hoodii

Carex brainerdii

Carex lupuliformis, common name false hop sedge, is a perennial sedge of sporadic distribution found in the floodplain forests and ephemeral woodland ponds of central and eastern North America. The species typically produces four to seven leaves with sheaths of distal leaves of 3 to 21 cm whose ligules are rounded to triangular. Carex lupuliformis blooms between early June and early October, typically with "two to six proximal female spikes, distal spikes usually crowded, ascending, densely flowered, usually cylindric, much longer than broad; one to two terminal male spikes." Fruiting occurs between late July through early October. Fruit is described as "perigynia ascending to spreading, inflated, strongly veined, sessile, lance-ovoid, shiny, glabrous; beak conical; achenes stipitate, broadly diamond-shaped, scarely if at all longer than wide, concave faces, angles thickened, prominently knobbed with hard, nipplelike points."

Carex hirta

Carex davyi

Carex jonesii is a species of sedge known by the common name Jones' sedge.

Carex klamathensis is a rare species of sedge known by the common name Klamath sedge. It is known from 15 or fewer populations in southern Oregon and three populations in the Klamath Region of northern California. It was described to science only in 2007. Its habitat includes fens and other wet habitat, on serpentine soils.This sedge grows from a long rhizome bearing clumps of stems. The leaves are glaucous, 2–6 mm wide, with papillae between and sometimes over the veins. The inflorescence consists of 2-3(-5) spikelets. The terminal spikelet is usually staminate, occasionally androgynous, gynecandrous, or pistillate. Staminate terminal spikes are 1.3-2.7 cm long, 2–5 mm wide, with 40-190 flowers. Lateral spikelets are pistillate, (0.6-)1.5-2.5 cm long, 4–7 mm wide, the uppermost usually 1.5–6 cm or more below the terminal spike, but sometimes attached as close as 0.3 cm below the terminal spike. Pistillate flower bracts are reddish brown, dark brown, or rarely gold, the midrib and surrounding area green, white, or light brown, the edges sometimes pale, 1.9-2.8 mm long excluding awn.Perigynia (utricles) are obovate to elliptic, 2.1-3.6 mm long, (0.8-)1.2-1.6(-1.8) mm wide, light green, tan, or whitish, sometimes marked with dark brown distally, papillose particularly toward the beak or rarely smooth, the base succulent when fresh and drying withered, the beak usually curved, the distance from beak tip to top of achene (0.1-)0.4-0.7(-1) mm. Stigmas 3 (occasionally 2 on 0-5%(-15%) of perigynia that have viable achenes). Achenes trigonous (lenticular if stigmas 2).Inconspicuous Carex klamathensis is easily confused with Carex hassei, which typically has 2 stigmas per flower and lenticular achenes. Unfortunately, populations of Carex hassei sympatric with Carex klamathensis in the Klamath Region often have a mix two- and three-styled flowers that produce viable lenticular and trigonous achenes, respectively. Up to 2/3 of the flowers may produce trigonous achenes.Carex klamathensis was discovered independently by botanists Peter Zika and Lawrence Janeway. Carex klamathensis is threatened by mining. In fact, most of one population has been obliterated by mining activities. Other threats include road building, recreational activities, and changes in drainage patterns.

Carex farwellii

Carex kobomugi

Carex lacustris, known as lake sedge (lucastris is from the Latin lacus, or lake), is a tufted grass-like perennial of the sedge family (Cyperaceae), native to southern Canada and the northern United States. C. lacustris us an herbaceous surface-piercing plant that grows in water up to 50 cm (1.6 ft) deep, and grows 50–150 cm (1.6–4.9 ft) tall. It grows well in marshes and swampy woods of the boreal forest, along river and lake shores, in ditches, marshes, swamps, and other wetland habitat.

Carex depauperata

Carex concinna is a species of sedge known by the common names low northern sedge, northern elegant sedge, beauty sedge, and beautiful sedge. It is native to northern North America, where it occurs across Canada and in high elevations in the northern contiguous United States.This sedge produces loose or dense clumps of triangular stems up to about 20 centimeters tall. There are a few light green leaves around the bases of the stems, each measuring up to 10 centimeters long but just a few millimeters wide. The inflorescences grow at the top and from the sides of the stems. The terminal spike is made up of staminate flowers. Each is under a centimeter long. The plant reproduces by seed and by sprouting from its rhizome.This plant grows in forests and wooded areas, often on calcareous substrates. It is common on the edges of flood channels. It occurs in the alvars around the Great Lakes along with other sedges such as spikerush (Eleocharis elliptica), ebony sedge (Carex eburnea), Richardson’s sedge (Carex richardsonii), and bulrush sedge (C. scirpoidea).

Carex livida is a species of sedge known by the common names livid sedge and pale sedge. It has a scattered, interrupted circumboreal distribution, occurring throughout much of Eurasia and northern North America. It also occurs in Panama and South America. It is extirpated in California.This sedge forms small clumps of stems up to 50 to 55 centimeters tall. The stiff, leathery leaves are a pale, waxy blue-gray and have channels on their surfaces.

Carex bichenoviana

Carex divisa is a species of sedge known by the common names divided sedge and separated sedge. It is native to Europe, Asia, and North Africa, and considered naturalized in Australia, New Zealand, and scattered locations in North America.

Carex disperma

Carex illota is a species of sedge known by the common name sheep sedge. It is native to western North America, where it grows in wet places such as marshes and mountain meadows, from New Mexico and California north to Western Canada.

Carex eburnea (ivory sedge or bristleleaf sedge) is a small and slender sedge native to North America.

Carex lepus-aestatis

Carex inversa, commonly known as knob sedge, is a species of sedge of the Cyperaceae family that is native to Western AustraliaThe monoecious and rhizomatous perennial grass-like sedge has a tufted habit and typically grows to a height of 0.3 to 0.75 metres (1 to 2 ft). It blooms between September and October producing brown flowers.It is found in winter wet depressions and along creek and rivers throughout a large area through the Wheatbelt, Peel, South West and Great Southern regions where it grows in sandy-clay-loam soils.

Carex microptera is a species of sedge known by the common name smallwing sedge. It is native to western North America, including most all of western Canada and the western United States. It occurs in moist mountain habitat such as meadows and riverbanks. This sedge produces dense clumps of erect stems over 20 centimeters tall and up to about a meter in height. The inflorescence is a dense cluster of green or brown spikes packed tightly and indistinct from each other.

Carex irrigua

Carex comosa

Carex jackiana

Carex hitchcockiana, common name Hitchcock's sedge, is a Carex species that is native to North America. It is listed as endangered in Maryland, as threatened in New York and Tennessee, and as a species of special concern in Connecticut and Massachusetts.

Carex mertensii is a species of sedge known by the common name Mertens' sedge. It is native to western North America from Alaska to California to Montana, where it grows in moist and wet habitat in mountain forests and meadows. This sedge produces clumps of stems reaching maximum heights between 80 and 120 centimeters. The leaves are small; those toward the bases of the stems are reduced to sheaths only. The inflorescence is a densely packed, bullet shaped cluster of overlapping flowers, mainly hanging on long peduncles. Each inflorescence is generally 2 to 4 centimeters long. Each of the flowers has a dark-colored bract.

Carex conjuncta

Carex lenticularis

Carex inops is a species of sedge known by the common name long-stolon sedge. It is native to northern North America, where it occurs throughout the southern half of Canada and the western and central United States. There are two subspecies; ssp. inops is limited to the west coast from British Columbia to California, while ssp. heliophila (sun sedge), is more widespread and is more common east of the Rocky Mountains.This sedge produces a loose clump of stems up to 50 centimeters tall. The stiff, narrow leaves persist, with dead ones remaining around the base of the plant. The inflorescence usually has pistillate spikes below staminate spikes. The plant grows from rhizomes and fibrous roots; despite its common name, it does not usually form stolons.This plant, particularly sun sedge (ssp. heliophila), is a dominant species in a number of ecosystems, such as many grasslands. On the prairies of the northern Great Plains it is codominant with grasses such as western wheatgrass (Pascopyrum smithii) and other wheatgrasses, big bluestem (Andropogon gerardi) and other bluestems, needle-and-thread grass (Hesperostipa comata) and other needlegrasses, and/or blue grama (Bouteloua gracilis) and other gramas. It is common on the tallgrass prairies of Kansas alongside bluestems and prairie sandreed (Calamovilfa longifolia). It can be a dominant species in Rocky Mountain meadows, woodlands in Nebraska, the Black Hills of South Dakota and Wyoming, and the plains of Saskatchewan. It can be found in each stage of ecological succession on grasslands. It can colonize blowouts, anthills, and prairie dog towns.Many types of animals consume this plant, particularly ssp. heliophila. It is considered a good forage for livestock because it is one of the first green plants to appear in the spring and animals such as cattle find it palatable.

Carex hitchcockiana

Carex magellanica, or the boreal bog sedge, is a Carex species that is native to North America. It is listed as endangered in Connecticut.

Carex lupuliformis

Carex magellanica subsp. irrigua

Carex limosa

Carex leptalea

Carex humilis (also known as dwarf sedge) is a species of sedge that can be found in Western Europe.

Carex meyeriana

Carex helleri

Carex deflexa variety media

Carex intumescens

Carex lemmonii, or Lemmon's sedge, is a plant in the sedge family, and is endemic to California. Carex albida (binomial authority L.H.Bailey) is now considered a synonym, but was previously thought to be a separate species; such plants have the common name white sedge.

Carex glaucocarpa

Carex lutea is a rare species of sedge known by the common names golden sedge and sulphur sedge. It is endemic to North Carolina, where it is known only from Pender and Onslow Counties in the Cape Fear River watershed. There are nine populations. The plant was discovered in 1991 and described to science as a new species in 1994, and it has not been thoroughly studied nor completely surveyed yet. Its rarity was obvious by 2002, however, when it was federally listed as an endangered species.This sedge was discovered in a very rare type of habitat made up of wet savannah on coquina limestone substrate. It occurs on the edge of a swampy section of North Carolina's coastal plain, and the sandy, acidic soil is either wet or submerged. This habitat experiences periodic wildfire every few years which clears brush, creating an open canopy. This fire regime is apparently vital to the rare Carex and other plants that cannot grow if the woody brush grows up and outcompetes them. Fire suppression efforts in the area threaten the plant and its ecosystem; some of the populations occur on private land that is not allowed to burn. It generally does not grow in an area without periodic fires unless it is mowed to clear the brush or it is too wet for large woody vegetation to grow. Other threats include logging and herbicide use. Destruction of the habitat or alterations in its hydrology could damage populations.Despite its small numbers and habitat specificity, the sedge has a relatively high genetic diversity compared to similar, more widespread species.This plant is a perennial sedge forming clumps of narrow stems which may exceed 1 meter (3 ft 3 in) in height. The thin leaves are up to 28 centimeters (11 in) long. The staminate (male) inflorescence is a spike of flowers up to 4 cm (1.6 in) long, the spikelets clad in reddish brown or light brown scales. The pistillate (female) inflorescence is under 3 cm (1.2 in) long and has yellow-green flowers that yield beaked fruits.

Carex depauperata (starved wood-sedge) is a rare species of sedge native to parts of Europe. The plant has been virtually extinct in the United Kingdom since the 1940s.In 2010, following a successful reintroduction at Charterhouse School, staff at Wakehurst Place Garden, West Sussex, announced that the plant was to be reintroduced to a second, undisclosed location in Surrey.

Carex fissuricola

Carex heteroneura is a species of sedge known by the common name different-nerve sedge. It is native to western Canada and the western United States, where it grows in moist mountain habitat such as forests and meadows.

Carex fascicularis

Carex chordorrhiza

Carex echinus

Carex darwinii

Carex davisii, common name Davis' sedge, is a species of Carex native to North America. It is listed as an endangered species within Connecticut and Massachusetts, endangered and extirpated in Maryland, threatened in Minnesota and New York, and as a special concern species in Tennessee.

Carex finitima

Cardiovascular and Interventional Radiological Society of Europe (CIRSE)

Carex horsfieldii

Carex leporina

Carex concinnoides is a species of sedge known by the common name northwestern sedge. It is native to western North America from British Columbia to California, where it can be found in moist or dry habitat, often in woodland and forested slopes, on silty and clay soils. This sedge produces loose clumps of stems up to about 35 centimeters in maximum height from long rhizomes. The leaves are thick but narrow, sickle-shaped, and pale green in color. Inflorescences occur at the stem tips, and some pistillate inflorescences grow from nodes along the stem. The spikelets have purplish bracts. The pistillate flowers have four stigmas on each pistil, an identifying characteristic. The fruit is coated in a sac called a perigynium, which is white to light brown in color, purple-tipped, and covered in hairs.

Carex helleri is a species of sedge known by the common name Heller's sedge. It is native to eastern California and western Nevada, where it grows on rocky mountain slopes and in other habitats.

Carex comosa is a species of sedge known by the common name longhair sedge. It is native to North America, where it grows in western and eastern regions of Canada and the United States, and parts of Mexico. It grows in wet places, including meadows and many types of wetlands. Tolerates deeper water than most common species and is good for retention basins. This sedge produces clumps of triangular stems up to 100 or 120 centimeters tall from short rhizomes. The inflorescence is up to 35 centimeters long and has a long bract which is longer than the spikes. It is a cluster of several cylindrical spikes. The scales over the fruits taper into long, thin awns.

Carex geophila

Carex hirtifolia

Carex mckittrickensis, the Guadalupe Mountain sedge, is a species of sedge endemic to Guadalupe Mountains National Park in western Texas. It occurs on the sides of steep ravines and also in riparian forests.

Carex divisa

Carex heteroneura

Carex breweri, known as Brewer's sedge, is a species of sedge that grows on dry rocky or gravel slopes in the Sierra Nevada and Cascade Mountains of the western United States, as far north as Mount Hood. It is classified in Carex sect. Inflatae, alongside Carex engelmannii and Carex subnigricans.

Carex illota

Carex firma

Carex grayi

Carex crawei

Carex cusickii

Carex globularis

Carex garberi is a species of sedge known by the common names elk sedge and Garber's sedge. It is native to northern North America, where it occurs throughout Canada and Alaska and down through the higher elevations as far south as the San Francisco Bay Area of California.This sedge produces loose clumps of stems up to 40 to 70 centimeters tall. The leaves may be shorter or much taller than the stems, but are only a few millimeters wide. There are inflorescences at the tips and along the sides of the stem; the lateral ones are pistillate, while the terminal ones usually have both male and female flowers. The scales covering the flowers are brown with a pale stripe through the midline.This sedge grows in many types of forests and meadows, usually in wet places such as swamps or pools. It is common around the Great Lakes.

*Carex brunnescens var. gracilio (Britt.)

Carex lupuliformis, common name false hop sedge, is a perennial sedge of sporadic distribution found in the floodplain forests and ephemeral woodland ponds of central and eastern North America. The species typically produces four to seven leaves with sheaths of distal leaves of 3 to 21 cm whose ligules are rounded to triangular.

Carex glauca

Carex fraseriana

Carex lemmonii

Carex chichijimensis is a species of perennial sedge of the genus Carex endemic to Chichijima Island in Japan. C. chichijimensis Katsuy belongs to sect. Graciles Tuck. ex Kük. and is a close relative of C. hattoriana Nakai which is endemic to the Ogasawara Islands. It differs from C. hattoriana in that it has larger, rather glabrous and strongly veined perigynia.

Carex brunnescens

Carex longii

Carex capillacea

Carex laevivaginata

Carex japonica

Carex dallii

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Carex louisianica, commonly called Louisiana sedge, is a species of flowering plant in the sedge family. It is native to North America, where it is primarily found in the southeastern United States. Its natural habitat is wet, swampy forests and openings.It is a rhizomatous perennial that flowers in spring. It produces fruits in late spring and summer.

Carex japonica, known as East Asian sedge, is a species of perennial sedge of the genus Carex which can be used like an ornamental plant.

Carex glabrescens

Carex jacobi-peteri

Carex deflexa variety farwellii

Carex dissita, also known as purei, is a sedge that is native to New Zealand.Carex dissita likes growing in dark and damp places such as the edges of bush streams or ponds. Seeds occur on long stems in order to disperse them away from the plant.

Carex fusanensis

Carex decidua

Carex dispalata

Carex integra

Carex hystericina is a species of sedge known by the common names bottlebrush sedge and porcupine sedge. It is native to much of North America including most of southern Canada and most of the United States. It grows in wet habitat such as wetlands and riverbanks, especially on calcareous soils. In the right conditions it can become very abundant and even weedy. This sedge produces dense or loose clumps of triangular stems up to a meter tall from short rhizomes. The inflorescence is several centimeters long and is accompanied by a bract which is longer than the spikes. The fruits are coated in perigynia with pointed, toothed tips. It is highly recommend for sedge meadow restorations.

Carex lasiocarpa is a species of sedge known by the common names slender sedge and woollyfruit sedge.

Carex concinna

Knob sedge

Carex canescens L. (syn. C. cinerea Poll.; C. curta Gooden.) is a perennial species of plants in the family Cyperaceae growing in damp forests and wetlands. It is widespread across much of Europe, Asia, Australia, New Guinea, North America, and southern South America.SubspeciesCarex canescens subsp. canescens – Europe, Asia, Australia, North America, New GuineaCarex canescens subsp. disjuncta (Fernald) Toivonen – eastern Canada, eastern United StatesCarex canescens var.

Guadalupe Mountain sedge

Carex jonesii

Carex distans, commonly known as distant sedge, is a plant species in the sedge family, Cyperaceae. It is native to Europe and North Africa. It is part of a complex of similar species that occur across Eurasia. Its relatives include Carex diluta of central Asia, which has also introduced to North America in Montana. Carex distans has been introduced to the US states including Maryland and Pennsylvania. More recently, it was found in Oregon. There is a report from Victoria, Australia as well.

Carex luzulina is a species of sedge known by the common name woodrush sedge.

Carex inversa

Carex garberi

Carex crawei, commonly called Crawe's sedge, is a species of flowering plant in the sedge family. It is native to North America, where it is widespread in the United States and Canada. Though widespread, it has a patchy distribution and is generally rare throughout its range. It is found in wet calcareous areas, usually associated with flat limestone outcrops or gravels. It is usually found in high quality natural habitats.It is a rhizomatous perennial that flowers in early spring.

Carex glacialis

Carex extensa is a species of sedge known by the common name long-bracted sedge. It is native to Europe, North Africa, and the Middle East.

Carex hystericina is a species of sedge known by the common names bottlebrush sedge and porcupine sedge. It is native to much of North America including most of southern Canada and most of the United States. It grows in wet habitat such as wetlands and riverbanks, especially on calcareous soils. In the right conditions it can become very abundant and even weedy. This sedge produces dense or loose clumps of triangular stems up to a meter tall from short rhizomes.

Carex garberi is a species of sedge known by the common names elk sedge and Garber's sedge. It is native to northern North America, where it occurs throughout Canada and Alaska and down through the higher elevations as far south as the San Francisco Bay Area of California.This sedge produces loose clumps of stems up to 40 to 70 centimeters tall. The leaves may be shorter or much taller than the stems, but are only a few millimeters wide.

Carex caduca

Carex decora

Carex fissa

Carex lutea

Carex fracta is a species of sedge known by the common name fragile sheath sedge. It is native to the western United States from Washington to California, where it grows in moist to dry areas in mountain forests and meadows. This sedge produces dense clumps of stems sometimes exceeding a meter tall. The leaves are attached to the stem with a characteristic thin, membranous sheath. The inflorescence is a dense or loose cluster of light green to gold spikes. Some spikes occur lower on the stem as well. The flowers are covered in light colored scales.

Carduus flodmanii

Carex lyngbyei is a species of sedge known by the common name Lyngbye's sedge. It is native to the west coast of North America from Alaska to California, where it "is the common sedge of the Pacific coastal salt marshes." It is also known from Greenland and Iceland. It prefers to grow in silty sediment rather than sand and in habitat with brackish water, such as salt marshes. This sedge produces stems 25 centimeters to well over one meter tall from a network of long rhizomes. The leaves have reddish brown sheaths which do not have spots. The inflorescence produces stiff, nodding spikes on peduncles. The fruit is coated in a leathery yellowish brown sac called a perigynium. This is a pioneer species, one of the first plants to colonize the mud of tidal flats in its range.

The Cardiovascular and Interventional Radiological Society of Europe is a learned society of interventional radiologists from Europe and overseas. The society has its headquarters in Vienna (Austria) and was founded in 1985. It currently has approximately 4,200 members from around the world, including 24 national societies. CIRSE's objective is to provide continuing education to physicians and scientists with an active interest in interventional radiology and to promote research as well as registries.CIRSE organises an annual congress with more than 5,000 participants, scientific meetings such as the European Conference on Embolotherapy and the European Conference on Interventional Oncology, as well as educational activities such as courses focusing on specific procedures. It publishes a bimonthly medical journal entitled CardioVascular and Interventional Radiology as well as other publications such as newsletters and manuals.

Carex leptopoda

Carex chihuahuensis

Carex harlandii

Carex inops is a species of sedge known by the common name long-stolon sedge. It is native to northern North America, where it occurs throughout the southern half of Canada and the western and central United States. There are two subspecies; ssp. inops is limited to the west coast from British Columbia to California, while ssp. heliophila (sun sedge), is more widespread and is more common east of the Rocky Mountains.This sedge produces a loose clump of stems up to 50 centimeters tall.

Carex buxbaumii

Carex egglestonii

Carex diversistylis

Carex elegans

Carex lacustris

Carex gholsonii

Carex haydeniana

Carex epapillosa

Carex exilis

Carex insignis

Carex luteobrunnea

Carex hoodii is a species of sedge known by the common name Hood's sedge. It is native to western North America from Alaska to Nunavut to California to South Dakota, where it grows in dry to moist habitat in forests and on mountain slopes.

Carex buxbaumii is a species of sedge known by the common name club sedge or Buxbaum's sedge. It is native to much of the northern Northern Hemisphere, from Alaska to Greenland to Eurasia, and including most of Canada and the United States. It grows in wet habitat, such as marshes and fens. This sedge grows in clumps from long rhizomes. The stems are 75 to 100 centimeters in maximum height. The leaves are narrow and small. The inflorescence has a bract which is sometimes longer than the spikes. The fruits have dark-colored bracts and a sac called a perigynium which is gray-green and rough in texture.

Carex deflexa var. rossii

Carex festucacea

Carex cespitosa is a species of perennial sedge of the genus Carex which can be found growing in tufts (caespitose), as the Latin specific epithet cespitosa suggests. The name is synonymous with Carex cespitosa f. retorta.The species is able to hybridise with the common sedge (Carex nigra) to produce a plant 20–50 centimetres (8–20 in) tall, flowering from May to June. The species can be found in all of Scandinavia, ranging from common to rare, and central parts of Europe, becoming rare to the west and towards the Mediterranean, and including isolated locations in Great Britain and the Iberian Peninsula.The species is often found in a mosaic with other Carex, but can become almost entirely dominant. It grows in very moist soil.

Carex haillii

Carex bushii

Carex incisa

Carex contigua

Carex concinnoides

Carex cryptolepis

Carex chordorrhiza, commonly called creeping sedge or string sedge, is a species of perennial plant in the family Cyperaceae with Holarctic distribution growing in acidic bogs.

Carex dissitispicula

Carex lepida

Carex declinata

Carencro

*Carex luzulifolia f. albida (L.H. Bailey) Kük.)

Carex maculata

Carex echinata is a species of sedge known by the common names star sedge and little prickly sedge.

Carex emoryi

Carex leporina is a species of sedge known in the British Isles as oval sedge and in North America as eggbract sedge. It is native to Eurasia and eastern and western North America, where it grows in seasonally wet habitat, such as meadows and fields. This sedge produces many thin stems and narrow leaves. The inflorescence is an open cluster of several flower spikes. The pistillate flower has a reddish or brownish bract with a gold center and white tip.

Carex micropoda is a species of sedge found in temperate and boreal regions of the Northern Hemisphere.

Carex lenticularis is a species of sedge known by the common names lakeshore sedge and goosegrass sedge. It is native to much of northern North America, including most all of Canada and the western United States, where it grows in wet habitat.

Carex daltonii

*Carex brunnescens var. sphaerostachya (Tuck.)Kük.)

divided sedge

Carex clivorum

Carex capitata

Carex fraseri

Carex deflexa var. media

Carex cuprina

Carex firma is a species of sedge that grows in the mountains of southern and central Europe.

Carex conica

Carex globosa

Carex bushii is a species of sedge in the genus Carex. It native to the eastern United States where it is found in areas of natural grassland.Carex bushii is distinguished from the similar Carex caroliniana, Carex complanata, and Carex hirsutella by having pistillate scales that are at least as long as the perigynia (the covering of the achene).

Carex fracta is a species of sedge known by the common name fragile sheath sedge. It is native to the western United States from Washington to California, where it grows in moist to dry areas in mountain forests and meadows. This sedge produces dense clumps of stems sometimes exceeding a meter tall. The leaves are attached to the stem with a characteristic thin, membranous sheath. The inflorescence is a dense or loose cluster of light green to gold spikes.

Cardiovascular and Interventional Radiological Society of Europe

Carex fuscocuprea

Carex disticha is a Eurasian species of sedge known as the brown sedge or, in North America, tworank sedge.

Carex bulbostylis

Carex laevigata, the smooth-stalked sedge, is a species of sedge. It lives in moist, shady environment in the lowlands of Western and Central Europe, particularly in alder–ash woodland. It is distinguished from similar species, such as C. binervis and C. distans by the presence of tiny red dots on the utricles. Carex laevigata was first described by James Edward Smith in 1800, in a paper in the journal Transactions of the Linnean Society of London.

Carex incurviformis

Carex fascicularis, commonly known as tassel sedge, is a species of sedge of the Cyperaceae family that is native to Western AustraliaThe monoecious and rhizomatous perennial grass-like sedge has a tufted habit and typically grows to a height of 0.6 to 1.5 metres (2 to 5 ft).

Carex louisianica

Carex magellanica

Carex gunniana

Carex comosa is a species of sedge known by the common name longhair sedge. It is native to North America, where it grows in western and eastern regions of Canada and the United States, and parts of Mexico. It grows in wet places, including meadows and many types of wetlands. Tolerates deeper water than most common species and is good for retention basins. This sedge produces clumps of triangular stems up to 100 or 120 centimeters tall from short rhizomes.

Carex dallii is an uncommon species of sedge native to the South Island (North West Nelson, Westland and Otago) of New Zealand. Its culms are approximately 500×0.5 mm when mature, and rhizomes are about 1 mm diameter.

Carex davisii

Carex comans

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Carex lambertiana

Tassel sedge

Carex eburnea

The Cardiovascular and Interventional Radiological Society of Europe is a learned society of interventional radiologists from Europe and overseas. The society has its headquarters in Vienna (Austria) and was founded in 1985. It currently has approximately 4,200 members from around the world, including 24 national societies.

Cardinality of the real numbers

Carex humilis

Carex hyalina

Carex hilairei

Carex harfordii

Carex lagopus

Carex heliophila

Carex mertensii is a species of sedge known by the common name Mertens' sedge. It is native to western North America from Alaska to California to Montana, where it grows in moist and wet habitat in mountain forests and meadows. This sedge produces clumps of stems reaching maximum heights between 80 and 120 centimeters. The leaves are small; those toward the bases of the stems are reduced to sheaths only.

Carex deflexa variety rossii

Carex genkaiensis

Carex inversa, commonly known as knob sedge, is a species of sedge of the Cyperaceae family that is native to Western AustraliaThe monoecious and rhizomatous perennial grass-like sedge has a tufted habit and typically grows to a height of 0.3 to 0.75 metres (1 to 2 ft).

Carex desponsa

Carex hirsutella

Carex mesochorea

Carex deflexa var. farwellii

Carex collinsii

Carex gracilior

Carex microptera