G. Arnaud

Cirsium rhothophilum

C. erisithalese

Cirsium

*Carduus canovirens (Rydb., syn of var. canovirens)

Cirsium chailletii

Cirsium smallii

Cirsosia

TNC

* Caloscala Tate, 1885
* Cirsotremma
* Cirsotremopsis Thiele, 1928
* Dannevigena Iredale, 1936
* Laniscala Lan, 1976
* Mammiscala de Boury, 1909
* Rectacirsa Iredale, 1936

Cirsium fontinale

Cirsium coccinatum

Powell, 1937

A cirsoid aneurysm is the dilation of a group of blood vessels due to congenital malformations with AV (arterio venous) shunting.Cirsoid means resembling a varix. Sometimes, a minor traumatic episode, such as a fall or bump on the head, can lead to the formation of a cirsoid aneurysm. Often these are trivial traumatic episodesCirsoid aneurysm in general is a hemangioma of an artery. It most commonly occurs over the head usually the superficial temporal artery and also it's branches. It can also occur in places where medium vessels lie over bones without much intervening tissues between them and the skin.The superficial temporal artery is the most commonly involved artery.

Cirsium eriophorum or woolly thistle is a herbaceous biennial species of the genus Cirsium. It is widespread across much of Europe. It is a large, biennial herb with sharp spines on the tips of the leaves, and long, woolly hairs on much of the herbage. Flower heads are large and nearly spherical, with spines on the outside and many purple disc florets but no ray florets.

Cirsonella ateles

inline,title

Bat. & J.L. Bezerra

Cirsonella parvula

Cirsosina rhododendri

Cirsium lecontei (often called the Le Conte's thistle) is a North American plant species native to the southeastern United States. It is a perennial, or sometimes biennial, species of the thistle tribe within the sunflower family. It grows along the coastal plain from Louisiana to North Carolina.The flowering season is mainly spring to summer.

Cirsium weyrichii

Cirsium palustre

Cirsium velenowskyi

informal group Ptenoglossa

Plantae

Cirsonella maoria is a minute sea snail, a marine gastropod mollusc in the family Skeneidae.

Cirsonella pisiformis is a minute sea snail, a marine gastropod mollusc in the family Skeneidae.

*Carduus ciliolatus (L.F.Hend.) A.Heller)

EDT

Cirsium palousense

Original drawing of a shell of Cirsonella naticoides

Cirsium heterophyllum

C. cymosum

Scop.

Cirsonella naticoides

Cirsonella consobrina is a minute sea snail, a marine gastropod mollusc in the family Skeneidae.

Cirsium wrightii (Wright's marsh thistle) is an endangered species of North American plants in the sunflower family. It is a monocarpic perennial sometimes reaching as much as 300 cm (10 feet) in height.The species was originally collected in 1851 in Arizona by Charles Wright.

Cirsium subalatum

Le Conte's thistle

Cirsonella gaudryi

Cirsium pisidium

Cirsium semidecurrens

Cirsium peckii (Steens Mountain thistle) is a very spiny and prickly perennial plant in the sunflower family (Asteraceae) that grows in the Great Basin of the western United States.

Cirsium spinosissimum

Drawing with two views of a shell of Cirsonella weldii

Cirsium remotifolium is a species of thistle known by the common name fewleaf thistle. It is native to the western United States, including the Pacific Coast and possibly as far east as the Rocky Mountains, depending on which populations are treated as part of the species. It is sometimes part of the serpentine soils flora. This native thistle is a perennial herb growing up to about 1.5 meters tall. The leaves are borne on spiny petioles and are toothed or lobed, the lowest leaves at the base of the stem reaching 50 centimeters in length. The inflorescence is made up of clustered flower heads which are lined with spiny phyllaries. The head is filled with white or purple flowers up to 2.5 centimeters long. The fruit is an achene a few millimeters long topped with a pappus up to about 2 centimeters in length.

Cirsium glutinosum

Cirsium lacerum

Cirsium leucanicum

Cirsium rusbyi

Bluejet Cloud Storage Controller

Cirsium vinaceum is a rare species of thistle known by the common name Sacramento Mountains thistle. It is endemic to Otero County, New Mexico, in the United States, where it is known only from the Sacramento Mountains. The plant can be found in six canyon systems in a southern section of this mountain range spanning about 32 kilometers. It is rare because it is limited to a specific type of mountain wetland which is both naturally uncommon and threatened by a number of forces.

Cirsium congdonii

Cirsonella waikukuensis is a minute sea snail, a marine gastropod mollusc in the family Skeneidae.

Cirsium spathulifolium

Cirsotrema

Thiele, 1912

Ciruela

*Carduus anglicus (Lam.)
*Carduus dissectus (L.)
*Carduus pratensis (Huds.)
*Cirsium anglicum ( DC.)
*Cirsium tuberosum subsp. anglicum ( Braun-Blanq.)
*Cnicus pratensis ( Willd.)

West Virginia#USA

Cirsium megacephalum

*Carduus pitcheri ( Porter)
*Cnicus pitcheri (Torr. ex Eaton)

Ciruelas, Guadalajara

Cirtas

Cirsonella

C. vinaceum

Cirsti Manor (Latvian: Cirstu muižas pils) is a two-storey manor house built in 1886 in Neo-Gothic red brick style in the historical region of Vidzeme, northern Latvia. Unusual to Neo-Gothic structures in Latvia, the hexagonal three-storey manor tower is detached from the main building.

ZIP codes

Cirsium oleraceum

Cirsosia is a genus of fungi in the Asterinaceae family. The relationship of this taxon to other taxa within the class is unknown (incertae sedis), and it has not yet been placed with certainty into any order.

Cirsium thomasii

Cirsium incanum

Cirsium hallii

Cirsium maculatum

Cirsium rydbergii (Rydberg's thistle or alcove thistle) is North American species of perennial plants in the sunflower family, found in the Colorado Plateau and Canyonlands regions of the southwestern United States, in the States of Utah and Arizona.Cirsium rydbergii is a large perennial herb sometimes reaching a height of 300 cm (10 feet). It has no or very few branches, and pinnately lobed leaves up to 90 cm (3 feet) long with many sharp spines but usually very few hairs. flower heads are spiny on the sides, containing white, pink, or purple disc florets but no ray florets.

*Cirsium tuberosum subsp. anglicum (Lam.) Braun-Blanq.)

C. crassicaule

* Crossea naticoides (Hedley, C. 1907)
* Crosseola naticoides (Iredale, T. & McMichael, D.F. 1962)

Cirsium peckii

Cirsium vinaceum is a rare species of thistle known by the common name Sacramento Mountains thistle. It is endemic to Otero County, New Mexico, in the United States, where it is known only from the Sacramento Mountains. The plant can be found in six canyon systems in a southern section of this mountain range spanning about 32 kilometers. It is rare because it is limited to a specific type of mountain wetland which is both naturally uncommon and threatened by a number of forces. The plant was federally listed as threatened in 1987.

Cirsium ciliolatum

Cirsium palatinum

Cirsium dissectum

Cirsium fontinale or fountain thistle is a flowering perennial herb in the sunflower family. It is endemic to California. The Cirsium genus is commonly known as the "thistle" genus, Cirsium being the Greek word for 'thistle.'

Cirsium heterophyllum, also known as melancholy thistle, is an erect spineless herb in the sunflower family. It is native to Europe and western Asia, where it grows in upland meadows, grasslands, road verges and open woodland.

Cirsium undulatum is a species of thistle known by the common names wavyleaf thistle and gray thistle. It is native to much of central and western North America from British Columbia east to Manitoba and south as far as the State of Durango in Mexico. It has also been found outside of its native range as an introduced species.Cirsium undulatum is widespread and found in many habitat types. It is a perennial herb exceeding 200 cm (79 in) in height.

Pitcher's thistle

The Cirth ([ˈkirθ]; plural of certh [ˈkɛrθ], in Sindarin meaning runes) are a semi-artificial script, with letters shaped on those of actual runic alphabets, invented by J. R. R. Tolkien for the constructed languages he devised and used in his works.

Cirsium murdockii

*Carduus hydrophilus (Greene)
*Cirsium vaseyi var. hydrophilum ( Petr. )
*Cirsium montigenum (Petr.)
*Cirsium vaseyi ( Jeps.)
*Cnicus breweri var. vaseyi (A.Gray)

Cirsium virginense

Original drawing of a shell of Cirsonella carinata

Cirsium muticum (also known as swamp thistle, marsh thistle, dunce-nettle, and horsetops) is a North American species of plants in the sunflower family, native to central and eastern Canada and the central and eastern United States.

Carduus vinaceus (Wooton & Standl.)

Cirsonella extrema is a species of sea snail, a marine gastropod mollusk in the family Skeneidae.

Conicella lata (Laseron, 1954)

Cirsonella cubitale is a minute sea snail, a marine gastropod mollusc in the family Skeneidae.

*Carduus pitcheri (Torr. ex Eaton) Porter)

Cirsonella carinata, common name the ridged false-top-shell, is a species of minute sea snail, a marine gastropod mollusk in the family Skeneidae.

Wright's marsh thistle

photo of herbarium specimen at University of California @ Davis, collected in Owens Valley, California

Cirsium rydbergii (Rydberg's thistle or alcove thistle) is North American species of perennial plants in the sunflower family, found in the Colorado Plateau and Canyonlands regions of the southwestern United States, in the States of Utah and Arizona.Cirsium rydbergii is a large perennial herb sometimes reaching a height of 300 cm (10 feet). It has no or very few branches, and pinnately lobed leaves up to 90 cm (3 feet) long with many sharp spines but usually very few hairs.

clade Caenogastropoda

Cirsium spinosissimum , common name Spiniest Thistle, is a European species of thistle which grows in dry rocky areas. It is found in France, Italy, Germany, Switzerland, Austria, and the Balkans.The plant is between 20 to 80 cm (8 to 31.5 in) tall. Leaves, stems, and the sides of the flower head bear long, sharp spines, hence the name of the plant. Flower heads contain numerous disc florets but no ray florets, the florets off-white sometimes with a purple tinge.

Cirsium effusum

Cirsium megacanthum

Cirsonella waikukuensis

Cirsonella is a genus of small sea snails, marine gastropod molluscs in the family Skeneidae.

Cirsium scariosum

Cirsium remotifolium is a species of thistle known by the common name fewleaf thistle. It is native to the western United States, including the Pacific Coast and possibly as far east as the Rocky Mountains, depending on which populations are treated as part of the species. It is sometimes part of the serpentine soils flora. This native thistle is a perennial herb growing up to about 1.5 meters tall.

Cirsonella georgiana is a species of sea snail, a marine gastropod mollusk in the family Skeneidae.

Cirsonella naticoides is a species of very small sea snail, a marine gastropod mollusk or micromollusk in the family Skeneidae.

Cirsonella gaudryi is a species of sea snail, a marine gastropod mollusk in the family Skeneidae.

Cirsium pseudo-palustre

Cirsium forsteri

*Cirsium scopolianum (Sch.Bip. ex Nyman)

Cirsonella extrema

Cirsium scopulorum

Cirsti Manor

Cirsium inuloides

C. scariosum

Cirsium ochrocentrum

Cirsium oleraceum, the cabbage thistle or Siberian thistle, is a species of thistle in the genus Cirsium within the sunflower family, native to central and eastern Europe and Asia, where it grows in wet lowland soils.Cirsium oleraceum is a herbaceous perennial plant growing to 1.5 m tall, the stems unbranched or with only a very few branches. The leaves are broad and ovoid, with a weakly spiny margin.

Cirsium hydrophilum is a species of thistle which is endemic to California, where it is found only in the San Francisco Bay Area and the Sacramento-San Joaquin River Delta. This native thistle grows in wet boggy habitats.

C. rydbergii

Butin & Speer

Torr. & A.Gray

painting by C. A. M. Lindman

ESA

Cirsium ciliolatum is a species of thistle known by the common name Ashland thistle. It is endemic to the Klamath Mountains, where it is known from only a few occurrences in Jackson and Josephine Counties in Oregon, as well as neighboring Humboldt and Siskiyou Counties in California. It is related to Cirsium undulatum and may be more accurately described as a variety of that species.Cirsium ciliolatum is a perennial herb growing from a rootstock branching with runner roots to a maximum height near 200 cm (79 in). It is cobwebby with fibers. The gray-green woolly leaves are smooth along the edges to deeply lobed, sometimes spiny and cobwebby, and up to 25 centimeters at the longest. The inflorescence is a cluster of several flower heads each about 2 centimeters long and up to 5 wide. The head is lined with sticky, spiny phyllaries and packed with white to lavender flowers. The fruit is an achene with a thick body a few millimeters long and a pappus about 1.5 centimeters in length.

* Vitrinella georgiana (Dall, 1927)

Original drawing of a shell of Cirsonella cubitale

Cirsonella parvula is a minute sea snail, a marine gastropod mollusc in the family Skeneidae.

Cirsium dissectum, also known as meadow thistle, is an erect perennial herb. It is found in England, Wales, Ireland, France, the Netherlands, Germany, Italy, Spain, Hungary, Norway, etc. It is found in fens and less acidic peat bogs i.e. it prefers damp boggy areas.

Cirsosiopsis violacescens

Cirsium nemorale

Cirsium crassicaule

Cirsium vulgare (spear thistle, bull thistle, or common thistle) is a species of the genus Cirsium, native throughout most of Europe (north to 66°N, locally 68°N), Western Asia (east to the Yenisei Valley), and northwestern Africa (Atlas Mountains). It is also naturalised in North America, Africa, and Australia and is an invasive weed in some areas. It is the national flower of Scotland.

Cirsium kochianum

Cirsium lecontei

Cirsium dubium

Cirsium montigenum

Powell, 1930

Cyclostrema microscopica (Gabriel, C. & Gatliff, J.H. 1910)

Cirsonella weldii, common name the shiny liotia, is a species of sea snail, a marine gastropod mollusk in the family Skeneidae.

Cirsodes

*Cirsium megacephalum (A.Gray) Cockerell ex Daniels)

Cirsium douglasii is a species of thistle known by the common names Douglas' thistle and California swamp thistle.It is native to the central coast and northern California ranges, foothills, and plateaus, and adjacent parts of southern Oregon and northwest Nevada. It grows in wet places in a number of types of habitat.

Cirsium pugnax

Cirsium erisithales

Cirsium oleraceum, the cabbage thistle or Siberian thistle, is a species of thistle in the genus Cirsium within the sunflower family, native to central and eastern Europe and Asia, where it grows in wet lowland soils.Cirsium oleraceum is a herbaceous perennial plant growing to 1.5 m tall, the stems unbranched or with only a very few branches. The leaves are broad and ovoid, with a weakly spiny margin. The flowers are produced in dense flower heads which are 2.5-4 cm diameter, pale yellow, but sometimes tinged pink.

J.T.Howell

Cirsonella floridensis

*Cirsium ochroleucum (DC. in Lam. & DC. (1805) )

Cirsium controversum

Cirsotrema forresti

Cirsonella romettensis is a species of sea snail, a marine gastropod mollusk in the family Skeneidae.

Cirsonella laxa

C. lecontei

Cirsosina

Cirsotrema zelebori, common name : the slender wentletrap, is species of very small deepwater sea snail, a marine gastropod mollusk in the family Epitoniidae, the wentletraps.

Ciruclating fluidized-bed boiler

*Cirsium maritimum (Elmer) Petr. 1914, illegitimate homonym not Makino 1910 nor Davidson & Moxley 1923)

Cirsonella globosa is a species of sea snail, a marine gastropod mollusk in the family Skeneidae, the turban snails.

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Cirsonella consobrina

*Carduus megacephalus (A.Nelson)
*Carduus undulatus (Nutt.)
*Cirsium megacephalum ( Cockerell ex Daniels)
*Cnicus undulatus ( A.Gray)

Cirsonella georgiana

Cirsonella maoria

Cirucci Thunderwitch

Cirsium spitzelii

Cirsium hastatum

Animalia

Cirsium mohavense is a species of thistle known by the common name Mojave thistle. It is native to the southwestern United States, where it grows in moist areas in otherwise dry habitat, such as desert springs. It is most common in the Mojave Desert, found also in the southern Great Basin and other nearby regions of California, Nevada, western Arizona, and southwestern Utah.Cirsium mohavense is a biennial or perennial growing up to 2.5 meters (100 inches or 8 feet 4 inches) tall. The densely woolly stem branches and spreads near the top. The leaves are toothed to deeply lobed, woolly, spiny, and up to 60 centimeters (24 inches) long near the base of the plant. The inflorescence is a spreading array of clusters of flower heads, each generally less than 3 centimeters long and wide. The flower head is coated in spiny phyllaries and filled with white, lavender, or pink flowers. The fruit is an achene a few millimeters long with a pappus on top about 1.5 centimeters long.

*Carduus mohavensis (Greene)
*Carduus rusbyi (Greene)
*Cirsium rusbyi ( Petr.)
*Cirsium virginense (S.L.Welsh)

Cirsonella variecostata

DC.

CEO: Gary Messiana Co-founder & CTO: Dan Decasper Co-founder & Chief Architect: Allen Samuels

Cirsonella globosa

Cirsium laciniatum

Cirsonella pisiformis

Cirsium perplexans is a species of flowering plant in the aster family known by the common names Rocky Mountain thistle and Adobe Hills thistle. It is endemic to Colorado in the United States, where it occurs in the Colorado and Gunnison River Valleys in the Rocky Mountains.This species is a biennial herb growing up to one meter tall from a taproot. The stems are coated thinly in webby fibers. The leaves are up to 30 centimeters long by 6 wide.

Cirsium pallidum

Ciruclating fluidized bed combustion

C. vulgare

Cirsium fraternum

C. palustre

Cirsium chuskaense

Cirspitzen

Cirsonella laxa is a minute sea snail, a marine gastropod mollusc in the family Skeneidae.

Cirsonella lata

Flowerhead of Cirsium erisithales

Cirsium humboldtense

Cirsium diversifolium

Cirsium palustre, the marsh thistle or European swamp thistle, is a herbaceous biennial (or often perennial) species of the genus Cirsium.Cirsium palustre is a tall thistle which reaches up to 2 metres (7 ft) in height. The strong stems have few branches and are covered in small spines. In its first year the plant grows as a dense rosette, at first with narrow, entire leaves with spiny, dark purple edges; later, larger leaves are lobed.

Hill

Cirsonella ateles is a species of sea snail, a marine gastropod mollusk in the family Skeneidae.

Cirsonella margaritiformis

Cirsium loncholepis

C. spinosissimum

Cirsonella densilirata

Cirsosina is a genus of fungi in the Microthyriaceae family; according to the 2007 Outline of Ascomycota, the placement in this family is uncertain.

Cirsostrema is a genus of very small deepwater sea snails, marine gastropod mollusks in the family Epitoniidae, commonly known as the wentletraps.The type species of the family is Scalaria varicosa Lamarck, 1822.

Cirsium schakaptaricum

Cirsonella densilirata is a minute sea snail, a marine gastropod mollusc in the family Skeneidae.

Cirsium ownbeyi

Powell, 1926

C. pitcheri

Cirsium perplexans

Mörch, 1852

Original drawing with three views of a shell of Cirsonella ateles

Cirsium chellyense

Dell, 1956

Cirsium fallax

Cirsium loncholepis is a rare species of thistle known by the common name La Graciosa thistle. It is endemic to California, where it is known from about 15 remaining occurrences in wetlands where southwestern San Luis Obispo County borders northwestern Santa Barbara County. It grows in coastal scrub and sand dunes, marshes, and moist grasslands in the watersheds of local rivers, including the Santa Maria River.

Cirsium firmum

Cirstea

Cirsium neomexicanum

Cirsodes is a genus of moth in the family Geometridae.

Cirsium rothrockii

*Cnicus ochroleucus ( (All.) Schleich. )

Cirsium flaccidum

Cirsosiopsis is a genus of fungi in the Microthyriaceae family.

Cirsonella reflecta

Cirsium lachenalii

Cirsium triacanthum

Arthropoda

Cirsium flavescens

Cirsium undulatum is a species of thistle known by the common names wavyleaf thistle and gray thistle. It is native to much of central and western North America from British Columbia east to Manitoba and south as far as the State of Durango in Mexico. It has also been found outside of its native range as an introduced species.Cirsium undulatum is widespread and found in many habitat types. It is a perennial herb exceeding 200 cm (79 in) in height. The stem branches a few times toward the top of the plant if at all. The leaves are very wavy along the edges and usually cut into shallow toothed lobes. The longest near the base of the plant are up to 30 centimetres (12 inches) long. The inflorescence holds one or more flower heads each up to 5 centimetres (2.0 inches) long and wide. The head is lined with spiny phyllaries of different shapes. The flowers in the head are white to lavender to pink and up to 5 centimetres (2.0 inches) long. The fruit is an achene a few millimeters long with a pappus which may be up to 4 centimeters in length.Cirsium undulatum has been shown to have its seed production reduced by an exotic weevil Larinus planus which was released to control canada thistle.

Cirsium variabile

C. neomexicanum

C. hydrophilum

Cirtsville, West Virginia

Petr.

Location within the state of West Virginia

Cirsium setidens

Cirsium douglasii

*Cirsium canovirens (Rydb.) Petr., syn of var. canovirens)

Cirsium ochrocentrum is a species of thistle known by the common name yellowspine thistle. It is native to the Great Plains of the Central United States and to the desert regions of the western United States and northern Mexico. Its range extends from eastern Oregon east to the Black Hills of South Dakota, south as far as the Mexican State of Durango.

Cirsium sorocephalum

Cirsium utahense

Cirsium crinitum

Cirsium pitcheri

Cirsium rosenii

Cirsium scopolianum

Cyclostrema cubitale (Hedley, C. 1907)

Cirsium rhothophilum is a rare North American species of thistle known by the common name surf thistle. It is endemic to California, where it is known only from the coastline around the border between San Luis Obispo and Santa Barbara Counties. It grows in sand dunes and coastal scrub near the beach.Cirsium rhothophilum grows up to 100 cm (39 in) tall with fleshy, woolly herbage usually forming a mound. The thick leaves are wavy and covered in feltlike hairs. They may have smooth, lobed, or toothed edges and small spines. The largest leaves at the base of the plant may reach 25 centimetres (9.8 inches) in length. The inflorescence bears several clustered flower heads, each head up to 4 centimeters long and 6 cm wide. The heads are lined with woolly phyllaries and filled with off-white to pale yellowish disc florets but no ray florets. The fruit is an achene a few millimeters long with a pappus up to 2 centimeters in length.

Cirsium odoratum

Cirsium muticum

Cirsium mohavense

Cirsostrema

* Tharsiella globosa

* Crossea carinata (Hedley, C. 1903)
* Crosseola carinata (Iredale, T. & McMichael, D.F. 1962)

Cirsonella paradoxa is a minute sea snail, a marine gastropod mollusc in the family Skeneidae.

Cirsium palustre, the marsh thistle or European swamp thistle, is a herbaceous biennial (or often perennial) species of the genus Cirsium.Cirsium palustre is a tall thistle which reaches up to 2 metres (7 ft) in height. The strong stems have few branches and are covered in small spines. In its first year the plant grows as a dense rosette, at first with narrow, entire leaves with spiny, dark purple edges; later, larger leaves are lobed. In the subsequent years the plant grows a tall, straight stem, the tip of which branches repeatedly, bearing a candelabra of dark purple flowers, 10–20 millimetres (0.4–0.8 in) with purple-tipped bracts. In the northern hemisphere these are produced from June to September. The flowers are occasionally white, in which case the purple edges to the leaves are absent.It is native to Europe where it is particularly common on damp ground such as marshes, wet fields, moorland and beside streams. In Canada and the northern United States, it is an introduced species that has become invasive. It grows in dense thickets that can crowd out slower growing native plants.

Cirsium coloradense

Cirsium ownbeyi is a rare North American species of flowering plant in the aster family known by the common name Ownbey's thistle. It is native to the United States, where it has a narrow distribution in northeast Utah, southwest Wyoming, and northwest Colorado. There are almost 30 known populations, with a total of over 25,000 individuals.Cirsium ownbeyi is a perennial herb growing 30 to 70 centimeters (12-28 inches) tall from a taproot and branched caudex. There are one or more erect stems.

C. heterophyllum

Cirsonella romettensis

Original image of a shell of Cirsonella microscopia

Cirsium dinaricum

Cirsonella microscopia is a species of extremely small sea snail, a marine gastropod mollusk or micromollusk in the family Skeneidae.

Cirsium purpureum

Cirsonella paradoxa

C. ochrocentrum

Cirsium mohavense is a species of thistle known by the common name Mojave thistle. It is native to the southwestern United States, where it grows in moist areas in otherwise dry habitat, such as desert springs. It is most common in the Mojave Desert, found also in the southern Great Basin and other nearby regions of California, Nevada, western Arizona, and southwestern Utah.Cirsium mohavense is a biennial or perennial growing up to 2.5 meters (100 inches or 8 feet 4 inches) tall.

Cirtsville

Cirsium nidulans

Imperial

Cirsium tweedyi

The Pitcher's thistle (Cirsium pitcheri), sometimes called dune thistle, is a species of thistle native to sand dune shorelines along the upper Great Lakes. It is native to Indiana, Illinois, Michigan, Wisconsin, and Ontario. It is listed by the U.S. Fish and Wildlife Service as a threatened species.

Cirtsville is an unincorporated community located in Raleigh County, West Virginia.The community derives its name from Curt Vass, an early settler.

Cirt-Yengica

Cirsium scapanolepis

Jeps.

Cirsonella propelaxa

Cirsium misilmerense

Cirsium cymosum is a North American species of thistle known by the common name peregrine thistle. It is native to the western United States, where it has been found in California, Oregon, Nevada, Utah, Idaho, Wyoming, and Montana.Cirsium cymosum is a biennial or perennial herb with a maximum height just 100 cm (39 in). It is coated in soft and coarse hairs and sometimes cobwebby fibers. The spiny leaves may reach 30 to 50 centimeters (12 to 20 inches) in length, especially toward the base of the stem. They are deeply cut into lobes which are lined with sharp teeth. The inflorescence is a cluster of flower heads each up to 3 centimeters long and 5 wide. The head is lined with sticky, spiny phyllaries and filled with dull white flowers. The fruit is an achene with a dark-colored body just under a centimeter long and a pappus of hairs up to 2.5 centimetres (0.98 inches) in length.VarietiesCirsium cymosum var. canovirens (Rydb.) D.J.Keil - most of species rangeCirsium cymosum var. cymosum - California, Nevada, Oregon

Cirsium rydbergii

Cirsium wrightii

Cirt Yengica

Cirsonella reflecta is a species of minute sea snail, a marine gastropod mollusc in the family Skeneidae.

Cirsium lanigerum

Cirt

Shut down operations in 2011

Cirsium lanceolatum

*Cirsium breweri subsp. howellii (Petr.) Petr.)

*Cnicus lecontei (Torr. & A.Gray) A.Gray)

* Circulus margaritiformis
* Lydiphnis margaritiformis (Dall, 1927)

Cirsonella kerguelenensis is a species of sea snail, a marine gastropod mollusk in the family Skeneidae.

Cirsium navajoense

Cirsium parviflorum

Cirsium remotifolium

Cirsium decipiens

M. von Strandmann

Cirsium proponticum

Lactucoideae

Cirsium modestum

C. dissectum

Cirsium erisithales, the yellow thistle or yellow melancholy thistle, is a perennial herbaceous plant in the thistle tribe within the sunflower family.

Cirsonella australis (Angas, 1877)

*Carduus maritima (Elmer 1905)
*Cirsium maritimum ( Petr. 1914, illegitimate homonym not Makino 1910 nor Davidson & Moxley 1923)

Circsium lecontei

* Epitonium (Asperiscala) forresti (Dell, R.K.)

Cirsonella floridensis is a species of sea snail, a marine gastropod mollusk in the family Skeneidae.

Cirsium eriophorum

Cirsium mielichhoferi

* Pseudorotella floridensis (Dall, 1927)
* Teinostoma floridense

Cirsonella lata is a minute sea snail, a marine gastropod mollusc in the family Skeneidae.

*Carduus wrightii (A.Heller)
*Cnicus wrightii ( A. Gray)

Cirsium howellii

Scop. 1769

Ciruclating fluidized-bed combustion

Cirsonella cubitale

Cirsonella propelaxa is a minute sea snail, a marine gastropod mollusc in the family Skeneidae.

Cirsium osterhoutii

Cirsonella microscopia

Cirsium perplexans is a species of flowering plant in the aster family known by the common names Rocky Mountain thistle and Adobe Hills thistle. It is endemic to Colorado in the United States, where it occurs in the Colorado and Gunnison River Valleys in the Rocky Mountains.This species is a biennial herb growing up to one meter tall from a taproot. The stems are coated thinly in webby fibers. The leaves are up to 30 centimeters long by 6 wide. They are sometimes unlobed but have toothed margins. The leaves have woolly fibers, especially on the undersides. The flower heads contain long lavender or purplish florets. The fruit is an achene which may exceed 2 centimeters in length including its pappus.This species is found in western Colorado, usually on open outcrops of clay-based soils called "adobe hills". Habitat types include pinyon-juniper woodland, sagebrush, saltbrush, and shrublands. Dominant plant species include Pinus edulis (pinyon pine), Juniperus osteosperma (Utah juniper), Artemisia tridentata (big sagebrush), Artemisia tridentata ssp. wyomingensis (Wyoming sagebrush), Atriplex confertifolia (saltbush), Amelanchier utahensis (Utah serviceberry), and Quercus gambelii (Gambel’s oak). The thistle grows in open areas that are sparsely vegetated. It can tolerate some disturbance and may occur on roadsides.The main threat to this species is probably biological pest control agents released to control non-native thistle species. For example, the weevil Rhinocyllus conicus was released to control musk thistle, Carduus nutans, but once in the wild it also attacked many native species, including native thistles such as C. perplexans. The weevil Larinus planus has been released near the habitat of C. perplexans for the biological control of Cirsium arvense. It is not yet known if this weevil will attack C. perplexans. In addition, herbicides used to control invasive thistles may harm native species.Other threats include excessive disturbance of the habitat. The thistle can tolerate some disturbance but off-road vehicle use can cause extensive degradation of the habitat. Road traffic may also be destructive. Introduced species of plants may be a threat, including Bromus inermis (smooth brome) and Melilotus officinalis (yellow sweet clover).

Species

Asteraceae - Cirsium erisithales-003.JPG

C. ciliolatum

Cirsium perennans

*Carduus lecontei (Torr. & A.Gray) Pollard)

*Carduus ciliolatus ( A.Heller)
*Cirsium breweri subsp. howellii ( Petr.)
*Cirsium howellii (Petr.)
*Cirsium undulatum var. ciliolatum (L.F.Hend.)

C. peckii

Cirsonella simplex

Cirth

Cirsium nidulum

Cirsium oblanceolatum

*Aplotaxis pungens (DC.)
*Carduus lecontei ( Pollard)
*Cirsium virginianum (Hook.)
*Cnicus arvensis (Hook. 1835 not Roth 1797)
*Cnicus lecontei ( A.Gray)
*Cnicus virginianus (Pursh)

See text

Cirsium lacteum

Cirsium crassicaule is a species of thistle known by the common name slough thistle. It is endemic to the San Joaquin Valley of California, where it is known primarily from freshwater wetlands. It has been found in only a few locations in Kern, Kings, and San Joaquin Counties.Cirsium crassicaule is an annual or biennial herb known to reach 300 cm (10 feet) in height. The thick stem is hollow and may be nearly 10 centimeters (4 inches) wide at the base. It is coated in hairs and cobwebby fibers. The woolly, webby, spiny leaves are deeply cut into many lobes, the lobes often lined with teeth. The longest leaves near the base of the plant may be 70 centimeters (28 inches) long.The inflorescence is a cluster of several flower heads each up to 3 centimeters long by 3 wide. The head is lined with spiny phyllaries and filled with pale pink or occasionally white flowers. The fruit is an achene with a flat, dark brown body about 5 millimeters long and topped with a pappus which may be 2 centimeters in length.

Cirsium linkii

Cirsium centaureae

Cirsotrema zelebori

Cirsium pauciflorum

C. loncholepis

Cirsium undulatum

Angas, 1877

C. rhothophilum

C. oleraceum

Bombus pascuorum - Bombus bohemicus - Cirsium heterophyllum - Keila.jpg

Cirsium consanguineum

Cirsium ownbeyi is a rare North American species of flowering plant in the aster family known by the common name Ownbey's thistle. It is native to the United States, where it has a narrow distribution in northeast Utah, southwest Wyoming, and northwest Colorado. There are almost 30 known populations, with a total of over 25,000 individuals.Cirsium ownbeyi is a perennial herb growing 30 to 70 centimeters (12-28 inches) tall from a taproot and branched caudex. There are one or more erect stems. The leaves are up to 30 centimeters (12 inches) long. The flower heads are oval and up to 2.5 centimeters (1 inch) long and wide. They are coated in green phyllaries with spines up to a centimeter long. The head contains white, pink, or purplish flowers up to 2 centimeters long. Blooming occurs in June through August. The fruit may be 2 centimeters long including its long pappus.This plant grows in sagebrush, juniper-dominated habitat, and riparian zones. The substrate is usually sandstone, but sometimes limestone.This species grows in Dinosaur National Monument, where it is threatened by disturbance caused by park visitors. It is also threatened by the seed-eating weevil Rhinocyllus conicus, which was introduced to the area as an agent of biological pest control against musk thistle.

Suter, 1908

Cirsium lactucinum

Cirsosiopsis

Cirsium minganense

Cirsium griseum

Cirsium eriocephalum

Cirsium praemorsum

Cirth word.png

C. eriophorum

Cirsonella kerguelenensis

Cirsium vulgare

Cirsium olivescens

Cirsium crassicaule is a species of thistle known by the common name slough thistle. It is endemic to the San Joaquin Valley of California, where it is known primarily from freshwater wetlands. It has been found in only a few locations in Kern, Kings, and San Joaquin Counties.Cirsium crassicaule is an annual or biennial herb known to reach 300 cm (10 feet) in height. The thick stem is hollow and may be nearly 10 centimeters (4 inches) wide at the base. It is coated in hairs and cobwebby fibers.

Original drawing with three views of a shell of Cirsonella gaudryi

Insecta

C. douglasii

Cirsium pallens

Left: Sketch of Cirsium wrightii

Cirsium virginianum

Cirsium cymosum is a North American species of thistle known by the common name peregrine thistle. It is native to the western United States, where it has been found in California, Oregon, Nevada, Utah, Idaho, Wyoming, and Montana.Cirsium cymosum is a biennial or perennial herb with a maximum height just 100 cm (39 in). It is coated in soft and coarse hairs and sometimes cobwebby fibers.

Carduus crassicaulis (Greene)

''Cirsium heterophyllum

C. setidens

* Boreoscala zelebori
* Cirsotrema forresti
* Cirsotrema reevei (Clessin, 1897)
* Epitonium forresti (Dell, R.K.)
* Epitonium zelebori (Frauenfeld, 1898)
* Scalaria intermedia (Hutton, 1873)
* Scalaria zelebori (Dunker, 1866)
* Tioria forresti (Dell, 1956)

C. wrightii

Cirsium decoloratum

*Carduus cymosus (Greene)
*Cirsium botrys (Petr)
*Cirsium triacanthum (Petr.)
*Carduus canovirens (Rydb., syn of var. canovirens)
*Cirsium canovirens ( Petr., syn of var. canovirens)

clade Hypsogastropoda

Cirsium inornatum

Cirsium laterifolium

See text.

Cirsium ochroleucum

Cirsonella margaritiformis is a species of sea snail, a marine gastropod mollusk in the family Skeneidae.

Cirsium chatenieri

Ciruclating fluidized bed boiler

The word "Cirth" written using the Cirth in the Angerthas Daeron mode

Cirsium heterophylloides

Cirsium oviforme

The Cirth ([ˈkirθ]; plural of certh [ˈkɛrθ], in Sindarin meaning runes) are a semi-artificial script, with letters shaped on those of actual runic alphabets, invented by J. R. R. Tolkien for the constructed languages he devised and used in his works. Cirth is written with a capital letter when referring to the writing system; the runes themselves can be called cirth.In the fictional history of Middle-earth, the original Certhas Daeron was created by the elf Daeron, and was later expanded into what was known as the Angerthas Daeron. Although the Cirth were later largely replaced by the Tengwar, they were adopted by Dwarves to write down their Khuzdul language (Angerthas Moria and Angerthas Erebor) because their straight lines were better suited to carving than the curved strokes of the Tengwar. Cirth was also adapted, in its oldest and simplest form, by various peoples including Men and even Orcs.

Tharsis gaudryi (Dautzenberg & H. Fischer, 1896)

*Carduus ochrocentrus ( Greene)
*Cnicus ochrocentrus ( A.Gray)
*Cnicus undulatus var. ochrocentrus ( A.Gray)

Cirsium lactucinum (Rydb.)

Cirsium vittatum

Cirsium neomexicanum is a North American species of thistle known by the common names New Mexico thistle, powderpuff thistle, lavender thistle, foss thistle and desert thistle.This plant is native to the southwestern United States and northwestern Mexico, particularly the Mojave and Sonoran Deserts. It has been found in California, Nevada, Arizona, Sonora, Utah, Colorado, New Mexico, and Texas.

Cirsium chrismarii

Cirsium longespinosum

C. perplexans

Cirsonella weldii

C. muticum

* Cithna adamsi (Jeffreys 1883)
* Cyclostrema funnazzense (de Gregorio, 1889)
* Oxystele romettensis (Granata-Grillo 1877)
* Tharsiella romettensis
* Tharsis romettensis (Jeffreys 1883)

C. mohavense

Cirsium hillii

*Carduus erisithales (Jacq.)
*Carduus hybridus (Steud.)
*Cirsium glutinosum (Lam. )
*Cirsium ochroleucum (DC. in Lam. & DC. )
*Cirsium scopolianum (Sch.Bip. ex Nyman)
*Cnicus divaricatus (Kit. ex Jáv. )
*Cnicus ochroleucus ( Schleich. )

Cirsium hydrophilum

Cirsium costaricense

Cirsoid aneurysm

Cirsium kelseyi

Cirsium cymosum

Laseron, 1954

Cirsium helleri

Cirsium insubricum

Cirsium silvaticum

Cirsium scariosum is a species of thistle known by the common names meadow thistle, elk thistle and dwarf thistle. It is native to much of western North America from Alberta and British Columbia south to Baja California. There are also isolated populations on the Canadian Atlantic Coast, on the Mingan Archipelago in Québec.Cirsium scariosum is a variable species grows in a variety of habitat types.

C. fontinale

Spreng.

Cirsium walkerianum

Cirsium microcephalum

Cirsium horridum

Cirsonella perplexa (Laseron, 1954)

GNIS feature ID

C. zelebori

*Carduus fontinalis ( Greene)
*Cnicus fontinalis (Greene)
*Cirsium campylon (H.Sharsm.)

Cirsium polyphyllum

C. remotifolium

Cirsium vaseyi

Plant in flower, Fossoy, Aisne, France

Tharsiella (Bush, 1897)

Cirsonella carinata

Cirsium gilense

Cirsium vinaceum

*Cirsium vaseyi var. hydrophilum (Greene) Petr. )

Cirsium macounii

Cirsosia manaosensis

Cirsium magnificum

Woot. & Standl.

*Cirsium undulatum var. ciliolatum (L.F.Hend.)

A cirsoid aneurysm is the dilation of a group of blood vessels due to congenital malformations with AV (arterio venous) shunting.Cirsoid means resembling a varix. Sometimes, a minor traumatic episode, such as a fall or bump on the head, can lead to the formation of a cirsoid aneurysm. Often these are trivial traumatic episodesCirsoid aneurysm in general is a hemangioma of an artery. It most commonly occurs over the head usually the superficial temporal artery and also it's branches.

*Cnicus arvensis (Hook. 1835 not (L.) Roth 1797)

Cirsium scariosum is a species of thistle known by the common names meadow thistle, elk thistle and dwarf thistle. It is native to much of western North America from Alberta and British Columbia south to Baja California. There are also isolated populations on the Canadian Atlantic Coast, on the Mingan Archipelago in Québec.Cirsium scariosum is a variable species grows in a variety of habitat types. It is made up of several geographic races, most of which have been previously classified as species. The races intergrade but their morphologies can also be quite different. This is generally a biennial or perennial herb. It takes three main forms, a stemless, flat rosette with a cluster of flower heads in the center, a mounding form with a short, erect stem, or a fully erect form reaching up to 200 cm (79 in) in height. When there is a stem it is usually fleshy, ridged, and woolly in texture. The leaves are sharply toothed or cut into toothed lobes, lined with spines, and up to 40 centimetres (16 inches) at their longest near the base of the plant. The inflorescence holds several flower heads, each up to 4 centimeters long and 5 cm wide. The flower head is lined with phyllaries which may have spines and teeth and filled with white to purple disc florets but no ray florets. The fruit is a compressed achene a few millimeters long topped with a pappus which may be 3 centimeters in length.VarietiesCirsium scariosum var. americanum - California, Colorado, Idaho, Nevada, Oregon, Utah, Wyoming, Baja CaliforniaCirsium scariosum var. citrinum - California, Baja CaliforniaCirsium scariosum var. coloradense - Arizona, Colorado, New Mexico, Utah, WyomingCirsium scariosum var. congdonii - California, NevadaCirsium scariosum var. robustum - California, OregonCirsium scariosum var. scariosum - Quebec, Alberta, British Columbia, California, Colorado, Idaho, Montana, Oregon, Utah, Washington, WyomingCirsium scariosum var. thorneae - Utah, Nevada, Idaho, ColoradoCirsium scariosum var. toiyabense- Nevada, Oregon, Idaho

C. undulatum

Ten.

Suisun thistle

*Cnicus divaricatus (Kit. ex Jáv. (1926) )

Cirtroen C15

Cirsium portoricense

Cirsium tioganum

Cirsium hallerianum

Cirsium rhothophilum is a rare North American species of thistle known by the common name surf thistle. It is endemic to California, where it is known only from the coastline around the border between San Luis Obispo and Santa Barbara Counties. It grows in sand dunes and coastal scrub near the beach.Cirsium rhothophilum grows up to 100 cm (39 in) tall with fleshy, woolly herbage usually forming a mound. The thick leaves are wavy and covered in feltlike hairs.

Cirsium ciliolatum is a species of thistle known by the common name Ashland thistle. It is endemic to the Klamath Mountains, where it is known from only a few occurrences in Jackson and Josephine Counties in Oregon, as well as neighboring Humboldt and Siskiyou Counties in California.

Cirsium vandasii

Powell, 1940

Cirsium cervini

Location within Raleigh county

Cirtas Systems

* Cirsonella australis (Angas, 1877)
* Crossea naticoides (Hedley, C., 1907)
* Cyclostrema susonis (Tenison-Woods, 1877)
* Cyclostrema weldii (Tenison-Woods, 1877)
* Teinostoma australe (Angas, 1877)

Cirsium erosum

* Teinostoma ateles (Dautzenberg & H. Fischer, 1896)
* Tharsis ateles (Dautzenberg & H. Fischer, 1896)

*Cnicus undulatus var. ochrocentrus (A.Gray) A.Gray)

Cirsium hesperium

Cirsium chodatii

Cirsium spurium

auto

Close-up on a flowerhead

C. ownbeyi

Cirsium exigium

Cirsium rigens

Nakai

Cirsium loncholepis is a rare species of thistle known by the common name La Graciosa thistle. It is endemic to California, where it is known from about 15 remaining occurrences in wetlands where southwestern San Luis Obispo County borders northwestern Santa Barbara County. It grows in coastal scrub and sand dunes, marshes, and moist grasslands in the watersheds of local rivers, including the Santa Maria River. It is a federally listed endangered species.This native thistle may exceed a meter in height and sometimes forms a mound with fleshy, ridged stem branches. The leaves are deeply cut into lobes, toothed and wavy along the edges, the lowest leaves approaching 30 centimeters in length. The inflorescence is a tight cluster of flower heads, each up to 3 or 4 centimeters long. The flower head is lined with spiny phyllaries and filled with purple-tinted white flowers with purple anthers. The fruit is a compressed achene a few millimeters long topped with a pappus which may be 2.5 centimeters in length.The conservation status of this population of thistles may be reevaluated as taxonomy studies suggest they may be members of the more common species Cirsium scariosum.

Cirsium strigosum