A. salicina

* Acacia salicina Lindl. var. typica Domin
* Acacia salicina Lindl. var. varians Benth.
* Acacia salix-tristis F. Muell.
* Acacia varians Benth.
* Racosperma salicinum Pedley

Acacia sphaerocephala

A. sericata

Acacia roigii

A. rhamphophylla

Plantae

Acacia ryaniana

Acacia sibilans, commonly known as the Whispering myall, is a shrub or tree of the genus Acacia and the subgenus Plurinerves. It is native to an area in the Mid West, Gascoyne, Pilbara and Goldfields-Esperance regions of Western Australia.The bushy shrub or tree typically grows to a height of 3 to 7.5 metres (10 to 25 ft) and produces yellow flowers.

Acacia schinoides is a shrub or tree indigenous to Australia. It has also been introduced into Kenya and Zimbabwe and it is cultivated there. A common name for the plant in Australia is green cedar wattle.

Acacia sulcata is a shrub of the genus Acacia and the subgenus Plurinerves. It is native to an area in the Great Southern, Goldfields-Esperance and Wheatbelt regions of Western Australia.The shrub typically grows to a height of 0.2 to 2 metres (1 to 7 ft). It blooms from June to February and produces yellow flowers.There are three varieties:Acacia sulcata var. planoconvexaAcacia sulcata var. platyphyllaAcacia sulcata var. sulcata

Acacia rostriformis, commonly known as Bacchus Marsh wattle, is a plant species that is endemic to Australia. It was first formally described in 2009 in the journal Muelleria.

Acacia

Acacia silvestris, commonly known the Bodalla silver wattle, is a tree of the genus Acacia and the subgenus Botrycephalae. It is native to an area in south eastern New South Wales and coastal Victoria.The erect tree typically grows to a height of 6 to 30 metres (20 to 98 ft). It flowers from July to September producing yellow inflorescences in axillary or terminal panicles.

A. speckii

Acacia retivenea

Acacia silvestris

Acacia semitrullata is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to a small area in the South West region of Western Australia.The slender, erect and pungent shrub typically grows to a height of 0.2 to 0.7 metres (0.7 to 2.3 ft). It blooms from May to October and produces cream-white flowers.

Acacia subracemosa

A. rostriformis

A. spectabilis

Acacia stricta var. binervis

Acacia synantha is a tree or shrub belonging to the genus Acacia and the subgenus Juliflorae. It is native to a small area in the Kimberley region of Western Australia.

Acacia synoria is a tree or shrub belonging to the genus Acacia and the subgenus Juliflorae. It is native to an area in the Wheatbelt region of Western Australia.The multi-stemmed tree or shrub typically grows to a height of 1.5 to 5 metres (5 to 16 ft). It blooms in December producing yellow flowers.

Acacia tayloriana

Acacia sciophanes, commonly known as the Ghost wattle or Wundowlin wattle, is a shrub of the genus Acacia and the subgenus Plurinerves. It is native to a small area in the Wheatbelt region of Western Australia.The wispy shrub typically grows to a height of 1.5 to 3 metres (5 to 10 ft). It blooms from September to November and produces yellow flowers.

Acacia squamata is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Wheatbelt, Great Southern and South West regions of Western Australia.The erect and sometimes trailing shrub typically grows to a height of 0.1 to 0.6 metres (0.3 to 2.0 ft). It blooms from July to September and produces yellow flowers.

Acacia spinosissima is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Wheatbelt region of Western Australia.The shrub typically grows to a height of 0.2 to 1.5 metres (0.7 to 4.9 ft). It blooms from August to September and produces yellow flowers.

A. subrigida

Acacia rostellata

Acacia richardsii is a shrub belonging to the genus Acacia and the subgenus Juliflorae. It is native to a small area in the Kimberley region of Western Australia.The bushy, rounded shrub typically grows to a height of 1.5 to 4 metres (5 to 13 ft). It blooms from March to August producing yellow flowers.

Acacia subsessilis

Acacia spondylophylla, commonly known as curry wattle, is a small, flat topped shrub native to Central and Western Australia. The leaves, which are arranged on spaced whorls around the stem, have a distinctive curry-like smell.The species is naturally found growing in stony and sandy soils, and has been brought into cultivation for arid area gardening.

Acacia sarcophylla

*Acacia suaveolens( (Sm.) Willd.) var. suaveolens

Acacia startii is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Gascoyne region of Western Australia.The dense multi-branched shrub typically grows to a height of 1 to 2 metres (3 to 7 ft). It blooms from July to August and produces green-yellow flowers.

Acacia spinescens

A. ryaniana

Acacia semitrullata

Summer-scented wattle

Acacia symonii

Acacia sclerophylla

Acacia rostriformis, Coimadai, Victoria

Acacia rhamphophylla is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Goldfields-Esperance region of Western Australia.The low spreading shrub typically grows to a height of 0.2 to 0.4 metres (1 to 1 ft). It blooms from August to September and produces yellow flowers.

Acacia sibilans

Acacia simulans is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to a small area in the Great Southern and Goldfields-Esperance regions of Western Australia.The diffuse openly branched shrub typically grows to a height of 0.3 to 1.0 metre (1.0 to 3.3 ft). It blooms from July to September and produces yellow flowers.

Acacia stictophylla, also known as Dandenong Range cinnamon wattle, is a species of Acacia that is endemic to Victoria, Australia. The species was first formally described in the botanical journal Muelleria in 2009. Previous to this it was included in the species Acacia leprosa and was often referred to as the "Dandenong Range variant". It is listed as "Rare in Victoria" on the Department of Sustainability and Environment's Advisory List of Rare Or Threatened Plants In Victoria.
Acacia stictophylla

A. storyi

Acacia subtessarogona, commonly known as spreading gidgee, is a tree in the family Fabaceae. Endemic to Western Australia, it occurs only in a small area of the Gascoyne River catchment near Carnarvon.Spreading gidgee grows as an upright tree to seven metres high. Like most Acacia species, it has phyllodes rather than true leaves. These are flat, curved, and about eleven centimetres long. The flowers are yellow. The pods are between six and twelve centimetres in length, and have a distinctive groove along each edge.

*Acacia suaveolens( subsp. myallensis D.A.Morrison & A.J.Rupp)

A. simulans

Acacia seed

Acacia sibina is a tree or shrub belonging to the genus Acacia and the subgenus Juliflorae. It is native to a large area in the Mid West, Goldfields and Wheatbelt region of Western Australia.The erect tree or shrub typically grows to a height of 1 to 4 metres (3 to 13 ft). It blooms from August to October producing yellow flowers.

Acacia stenophylla, the shoestring acacia, is an evergreen tree in the family Fabaceae native to Australia

A. synchronicia

Acacia speckii

Acacia saligna

Racosperma stenopterum ( Pedley)

Acacia ryaniana is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Gascoyne region of Western Australia.The prostrate spinescent shrub typically grows to a height of 0.1 to 0.4 metres (0.3 to 1.3 ft). It blooms from June to November and produces yellow flowers.

*Acacia stenophyllaBenth.var.linearisMaiden

Acacia simplicifolia

Acacia retinervis

Acacia scleroclada

Acacia sessilis

Acacia sabulosa is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Northern Territory and the Goldfields-Esperance and Pilbara regions of Western Australia.The bushy resinous shrub typically grows to a height of 1 to 3 metres (3 to 10 ft). It blooms from May to July and produces yellow flowers.

Acacia sulcata

Acacia speciosa

A. schinoides

A. spinosissima

Acacia synchronicia

Acacia rostellifera

Acacia ridleyana is a shrub of the genus Acacia and the subgenus Plurinerves. It is native to an area in the Wheatbelt and Mid West regions of Western Australia.The spreading sprawling shrub typically grows to a height of 0.2 to 0.9 metres (1 to 3 ft). It blooms from August to December and produces yellow flowers.

A. setulifera
Acacia setulifera is a shrub of the genus Acacia and the subgenus Plurinerves. It is native to an area in the Northern Territory and the Kimberley region of Western Australia.The bushy, dense and resinous shrub typically grows to a height of 0.3 to 1 metre (1 to 3 ft) and produces bright yellow flowers. The phyllodes are elliptic or ovate, often slightly curved and undulate, 0.3 to 0.6 centimetres (0.1 to 0.2 in) long, 1.5 to 3 millimetres (0.1 to 0.1 in) wide.

Acacia seclusa

Acacia simplex

Acacia signata
A. signata

Acacia subflexuosa

Acacia sciophanes

Acacia roycei is a shrub or tree of the genus Acacia and the subgenus Plurinerves. It is native to an area in the Mid West and Wheatbelt regions of Western Australia.The dense shrub or tree typically grows to a height of 1 to 6 metres (3 to 20 ft). It blooms from August to October and produces yellow flowers.

Acacia sclerophylla, commonly known as the Hard-leaf wattle, is a shrub of the genus Acacia and the subgenus Plurinerves. It is native to southern areas in South Australia and Victoria as welll as an area in the Wheatbelt and Goldfields-Esperance regions of Western Australia.The shrub typically grows to a height of 0.2 to 2.5 metres (1 to 8 ft). It blooms from August to October and produces yellow flowers.There are three known varieties:Acacia sclerophylla var. pilosaAcacia sclerophylla var. sclerophyllaAcacia sclerophylla var. teretiuscula

Acacia rigens

A. squamata

A. sclerosperma

Acacia subcaerulea is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to coastal areas in the Goldfields-Esperance, Great Southern and South West regions of Western Australia.The slender shrub typically grows to a height of 1 to 3 metres (3 to 10 ft). It blooms from March to September and produces yellow flowers.

Acacia suaveolens

Acacia spadicigera

Acacia strongylophylla is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Goldfields-Esperance region of Western Australia.The erect spinescent shrub typically grows to a height of 1 to 3 metres (3 to 10 ft). It blooms from June to October and produces yellow flowers.

*Acacia angustifolia( (Jacq.) H.L.Wendl.)

Acacia riceana

A. scirpifolia

Acacia rossei is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Wheatbelt and Goldfields-Esperance regions of Western Australia.The spindly, open and viscid shrub typically grows to a height of 1.0 to 3.0 metres (3 to 10 ft). It blooms from August to January and produces yellow flowers.

Acacia schinoides

Acacia sessilispica is a shrub belonging to the genus Acacia and the subgenus Juliflorae. It is native to a large area in the southern Wheatbelt and the Great Southern regions of Western Australia.The dense rounded shrub typically grows to a height of 0.8 to 3 metres (3 to 10 ft). It blooms from August to September producing yellow flowers.

A. silvestris

Acacia subtiliformis

Acacia roxburghii

Acacia simplex is a perennial climbing tree native to islands in the western part of the Pacific Ocean as far east as Savaiʻi. It is also found in Argentina. This tree grows up to 12 m in height.There is no common English name, but it is called tatakia in Fiji, tatagia in Samoa, tātāngia in Tonga and Martaoui in New-Caledonia

Acacia retinoides

Acacia rossiana

Acacia steedmanii

Acacia scalpelliformis

Limestone wattle

A. sciophanes

A. subcaerulea

A. scleroclada

Acacia speckii is a shrub or tree of the genus Acacia and the subgenus Plurinerves. It is native to an area in the Mid West and Goldfields-Esperance regions of Western Australia.The bushy rounded shrub or tree typically grows to a height of 1.5 to 3 metres (5 to 10 ft).

Acacia scalena is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Wheatbelt and Mid West regions of Western Australia.The rigid prickly shrub typically grows to a height of 0.5 to 1.5 metres (2 to 5 ft). It blooms from June to September and produces yellow flowers.

Acacia spongolitica is a shrub of the genus Acacia and the subgenus Plurinerves. It is native to an area in the Great Southern and Goldfields-Esperance regions of Western Australia.The spreading, aromatic and resinous shrub typically grows to a height of 1 to 3 metres (3 to 10 ft) and a width of 1.5 to 4 metres (5 to 13 ft). It blooms from July to September and produces yellow flowers.

Acacia stigmatophylla is a shrub belonging to the genus Acacia and the subgenus Juliflorae. It is native to a large area in the Kimberley and region of Western Australia.The shrub typically grows to a height of 1 to 4 metres (3 to 13 ft). It blooms from January to October producing yellow flowers.

Willd.

A. retivenea

Acacia saxatilis is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Wheatbelt and Mid West regions of Western Australia.The shrub typically grows to a height of 0.8 to 2.5 metres (3 to 8 ft). It blooms from September to October and produces yellow flowers.

Acacia spathulifolia

Acacia stenoptera, commonly known as narrow-winged wattle, is a species of wattle that is endemic to the south-west of Western Australia.It is a rigid and prickly shrub that typically grows to a height of 0.2 to 0.7 metres (0.7 to 2.3 ft) but can reach as high as 2 m (7 ft). The shrub has ridged stems and curving spine-tipped phyllodes that form continuous wings along the stem. It produces globular, cream or yellow flowerheads between March to December in the species native range. After flowering it will produce quadrangular seed pods that are 3 to 7 centimetres (1.2 to 2.8 in) long with prominent ridges.

Acacia roycei

A. stenophylla

A. retinodes

Acacia sphenophylla

*Acacia suaveolens( subsp. montana D.A.Morrison & A.J.Rupp)

Acacia schlechteri

Acacia erythropus Ten. nom. dub.

Acacia scalena

Acacia restiacea

Acacia synoria

Acacia strombulifera

Acacia signata is a tree or shrub belonging to the genus Acacia and the subgenus Juliflorae. It is native to a large area in the Mid West and Wheatbelt region of Western Australia.The slender, weeping tree or shrub typically grows to a height of 1 to 4 metres (3 to 13 ft). It blooms from August to October producing yellow flowers.

A. spinescens

Acacia setulifera

Acacia sibirica, commonly known as bastard mulga or false witchetty bush, is a tree or shrub belonging to the genus Acacia and the subgenus Juliflorae. It is native to arid areas of Australia.

Acacia sedifolia

A. stigmatophylla

Acacia singula

Acacia rossei

Acacia splendens

Acacia rigens, commonly known as nealie, is an erect or spreading shrub or small tree that is endemic to Australia. Other common names include needle wattle, needlebush acacia, nealia and nilyah.Plants grows to between 1 and 6 metres high and have rigid, terete phyllodes that are between 3 and 13 cm long. The bright yellow flowerheads appear in groups of up to four in the axils of the phyllodes.
Acacia rigens, commonly known as nealie, is an erect or spreading shrub or small tree that is endemic to Australia. Other common names include needle wattle, needlebush acacia, nealia and nilyah.Plants grows to between 1 and 6 metres high and have rigid, terete phyllodes that are between 3 and 13 cm long. The bright yellow flowerheads appear in groups of up to four in the axils of the phyllodes. These appear between July and December in the species' native range, followed by curled, twisted or coiled seed pods which are 4 to 10 cm long and 2 to 3 mm wide.The species occurs on red earth, sandy or shaly soils in mallee and woodland in southern Western Australia, South Australia, Victoria, New South Wales and Queensland.The larvae of the double-spotted lineblue butterfly feed on this species.The species was first formally described in 1832 by botanist Allan Cunningham.

A. splendens

Acacia spectabilis

Acacia symonii is a tree or shrub belonging to the genus Acacia and the subgenus Juliflorae. It is native to an area in South Australia and the central Goldfields region of Western Australia.The tree or shrub typically grows to a height of 2 to 4 metres (7 to 13 ft). It blooms from May to September producing yellow flowers.

Acacia seyal

Acacia retrorsa

Acacia sphacelata is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Mid West, Wheatbelt and Goldfields-Esperance regions of Western Australia.The shrub typically grows to a height of 0.2 to 2.0 metres (0.7 to 6.6 ft). It blooms from April to September and produces yellow flowers.There are three recognised subspecies:Acacia sphacelata subsp. recurvaAcacia sphacelata subsp. sphacelataAcacia sphacelata subsp. verticillata

A. robiniae

A. synantha

A. saxatilis

*Acacia odorata var. angustifolia (Jacq.) Desv. nom. inval.)

Acacia sorophylla is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Goldfields-Esperance region of Western Australia.The dense intricate shrub typically grows to a height of 0.1 to 0.4 metres (0.3 to 1.3 ft). It blooms from October to December and produces yellow flowers.

Acacia sulcaticaulis is a tree or shrub belonging to the genus Acacia and the subgenus Juliflorae. It is native to a small area in the Wheatbelt region of Western Australia.

Acacia rostriformis

LR/nt

*Acacia stricta (Andrews) Willd.) var. binervis (F.Muell.)

Acacia spectabilis, commonly known as Mudgee wattle, is an erect or spreading shrub, endemic to Australia. Alternative common names include glory wattle, Pilliga wattle and golden wattleIt grows to between 1.5 and 4 metres high and has pinnate leaves. The bright-yellow globular flowerheads appear in axillary racemes, mostly between July and November in its native range. These are followed by thin leathery pods which are 4–17 cm long and 10–19 mm wide.The species occurs naturally in dry sclerophyll forest and heath in New South Wales and Queensland and is commonly cultivated.

Acacia squamata

Acacia subsessilis is a shrub of the genus Acacia and the subgenus Plurinerves. It is native to an area in the Mid West and Wheatbelt regions of Western Australia.The straggly and pungent shrub typically grows to a height of 1 to 2 metres (3 to 7 ft). It blooms from July to August and produces yellow flowers.

Acacia stipulosa

Acacia spondylophylla

Acacia salicina

Acacia retivenea, commonly known as the Net-veined wattle, is a shrub of the genus Acacia and the subgenus Plurinerves. It is native to an area in the Kimberley, Pilbara and Goldfields-Esperance regions of Western Australia.The erect open shrub typically grows to a height of 1 to 3 metres (3 to 10 ft). It blooms from April to October and produces yellow flowers.There are two recognised subspecies:Acacia retivenea subsp. clandestinaAcacia retivenea subsp. retivenea

Acacia sericata

Acacia storyi

Acacia stenoptera, commonly known as narrow-winged wattle, is a species of wattle that is endemic to the south-west of Western Australia.It is a rigid and prickly shrub that typically grows to a height of 0.2 to 0.7 metres (0.7 to 2.3 ft) but can reach as high as 2 m (7 ft). The shrub has ridged stems and curving spine-tipped phyllodes that form continuous wings along the stem. It produces globular, cream or yellow flowerheads between March to December in the species native range.

*Acacia verniciflua (Bacchus Marsh variant)

*Acacia suaveolens( subsp. grampianensis D.A.Morrison & A.J.Rupp)

Acacia simulans

Acacia sericata is a shrub or tree of the genus Acacia and the subgenus Plurinerves. It is native to an area in the Kimberley region of Western Australia.The dense shrub or tree typically grows to a height of 2.5 to 7 metres (8 to 23 ft).

Acacia rostellata is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Wheatbelt, Goldfields-Esperance and Great Southern regions of Western Australia.The low, spreading pungent shrub typically grows to a height of 0.1 to 0.5 metres (0 to 2 ft). It blooms from August to November and produces green-yellow flowers.

Acacia robiniae is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Great Southern and Goldfields-Esperance regions of Western Australia.The pungent shrub typically grows to a height of 0.3 to 0.7 metres (1 to 2 ft). It blooms from April to September and produces white-cream flowers.

Acacia sibirica

Acacia sabulosa

Acacia sieberana

Acacia subulata, commonly known as awl-leaf wattle, is a shrub endemic to New South Wales in Australia.The species grows to between 1 and 4 metres high and has phyllodes that measure 6 to 14 cm long and 0.8 to 1.5 mm wide. These are straight or slightly curved . The globular yellow flowerheads appear in racemes (groups of 3 to 11) in the phyllode axils predominantly from June to December. Plants may flower up to three times a year. These are followed by straight or slightly curved seed pods that are 4 to 18 cm long and 4 to 8 mm wide.

Acacia robeorum is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Kimberley and Pilbara regions of Western Australia.

*Acacia leprosa var. Reclinata (B.R.Maslin 5868) Vic. Herbarium )

Acacia subulata, commonly known as awl-leaf wattle, is a shrub endemic to New South Wales in Australia.The species grows to between 1 and 4 metres high and has phyllodes that measure 6 to 14 cm long and 0.8 to 1.5 mm wide. These are straight or slightly curved . The globular yellow flowerheads appear in racemes (groups of 3 to 11) in the phyllode axils predominantly from June to December. Plants may flower up to three times a year.

Acacia stenoptera

Acacia subflexuosa is a shrub of the genus Acacia and the subgenus Plurinerves. It is native to an area in the Peel and Wheatbelt regions of Western Australia.The dense shrub typically grows to a height of 0.25 to 1 metre (1 to 3 ft). It blooms from August to September and produces yellow flowers.There are two recognised subspecies:Acacia subflexuosa subsp. capillataAcacia subflexuosa subsp. subflexuosa

Acacia salix-tristis

A. sphenophylla

* Acacia laurifolia A.Gray
* Acacia laurifolia Willd.
* Acacia simplicifolia Druce
* Mimosa simplicifolia L.f.

Acacia resinosa is a shrub of the genus Acacia and the subgenus Plurinerves. It is native to an area in the Wheatbelt and Goldfields-Esperance regions of Western Australia.The bushy, aromatic and resinous shrub typically grows to a height of 1 to 2.5 metres (3 to 8 ft). It blooms from June to September and produces yellow flowers.

A. rhodophloia

Acacia robiniae

Acacia shuttleworthii

*Acacia angustifolia( H.L.Wendl.)
*Acacia odorata var. angustifolia ( Desv. nom. inval.)
*Acacia suaveolens subsp. prostrata (D.A.Morrison & A.J.Rupp)
*Acacia suaveolens( Willd.) var. suaveolens
*Acacia suaveolens( Willd.) subsp. suaveolens
*Acacia suaveolens( var. platycarpa DC.)
*Acacia suaveolens( subsp. montana D.A.Morrison & A.J.Rupp)
*Acacia suaveolens( subsp. grampianensis D.A.Morrison & A.J.Rupp)
*Acacia suaveolens( subsp. myallensis D.A.Morrison & A.J.Rupp)
*Hecatandra suaveolens( Raf.)
*Mimosa ambigua( K.D.Koenig & Sims nom. illeg.)
*Mimosa angustifolia( Jacq.)
*Mimosa obliqua( Lam.)
*Mimosa suaveolens( Sm.)
*Phyllodoce angustifolia( Link)
*Phyllodoce suaveolens( Link)
*Racosperma suaveolens( Pedley)

Acacia subtessarogona

Acacia richardsii

A. subracemosa

Acacia stanleyi is a shrub belonging to the genus Acacia and the subgenus Juliflorae. It is native to a small area in the Wheatbelt region of Western Australia.The shrub typically grows to a height of 2 to 3.5 metres (7 to 11 ft). It blooms from August to September producing yellow flowers.

Acacia spinosissima

Acacia retinervis is a tree or shrub belonging to the genus Acacia and the subgenus Juliflorae. It is native to a large area in the Kimberley region of Western Australia.The tree or shrub typically grows to a height of 2 to 12 metres (7 to 39 ft). It has fissured brown bark and blooms from April to September producing yellow flowers.

*Acacia verniciflua fourth variant
*Acacia verniciflua
* Acacia verniciflua var. Bacchus Marsh

Acacia rostellifera, commonly known as summer-scented wattle or skunk tree is a coastal tree or small tree in the family Fabaceae. Endemic to Western Australia, it occurs along the west coast as far north as Kalbarri in the Southwest Australia savanna ecoregion, and along the south coast as far east as Israelite Bay.The summer-scented wattle generally reproduces by suckers from underground stems. Because of this suckering, the species often forms thickets that exclude all other species. The tallest Acacia of its area, it can grow to 10 metres. Specimens above 3 metres are not often seen, however, as bushfires occur often in its area. Fire burns the plants right to the ground, but the underground stem resprouts vigorously.

Acacia subtiliformis is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Pilbara region of Western Australia.The slender, spindly and erect shrub typically grows to a height of 3.5 metres (11 ft). It blooms in June and produces yellow flowers.

Acacia splendens is a tree or shrub of the genus Acacia and the subgenus Phyllodineae. It is native to a small area in the Wheatbelt region of Western Australia.The tree or shrub typically grows to a height of 8 metres (26 ft). It blooms in May and produces yellow flowers.

Acacia sphenophylla is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Mid West region of Western Australia.The intricate pungent shrub typically grows to a height of 0.3 to 1.3 metres (1.0 to 4.3 ft). It blooms from July to August and produces yellow flowers.

Acacia sorophylla

Acacia rigidula

Acacia scirpifolia

Acacia strongylophylla

A. simplex

*Racosperma rigens (A.Cunn. ex Don) Pedley)

Acacia sedifolia is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Wheatbelt region of Western Australia.The shrub typically grows to a height of 0.3 to 2.0 metres (1 to 7 ft). It blooms from June to August and produces yellow flowers.There are two recognised subspecies:Acacia sedifolia subsp. pulvinataAcacia sedifolia subsp. sedifolia

Acacia subulata

Acacia tayloriana is a shrub of the genus Acacia and the subgenus Pulchellae. It is native to an area in the South West and Great Southern regions of Western Australia.The prostrate shrub blooms in January and produces cream-white flowers.

Acacia smallii

Acacia stereophylla

Acacia shuttleworthii is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Wheatbelt region of Western Australia.The low compact shrub typically grows to a height of 0.25 to 0.5 metres (0.8 to 1.6 ft). It blooms from October to December and produces cream-white flowers.

Acacia saxatilis

H.L.Wendl.

*Acacia stenophylla Benth. var. linearis Maiden
*Racosperma stenophyllum Pedley

A. sessilis

Acacia spongolitica

A. sedifolia

A. restiacea

A. spathulifolia

A. sibina

Acacia robeorum

Acacia strain

Acacia stereophylla is a tree or shrub belonging to the genus Acacia and the subgenus Juliflorae. It is native to a large area in the Mid West and Wheatbelt region of Western Australia.The tree or shrub typically grows to a height of 1 to 6 metres (3 to 20 ft). It blooms from June or August to October producing yellow flowers.There are two varieties:Acacia stereophylla var. cylindrataAcacia stereophylla var. stereophylla

Acacia stanleyi

A. sulcaticaulis

A. scalpelliformis

Acacia rhetinoides

Acacia subcaerulea

A. stenoptera

Acacia suaveolens (sweet wattle) is a shrub species endemic to Australia. It grows to between 0.3 and 3.5 metres high and has smooth purplish-brown or light green bark and has straight or slightly curving blue-green phyllodes The pale yellow to near white globular flowerheads generally appear between April and September in its native range. These are followed by flattened, bluish oblong pods which are up to 2 to 5 cm long and 8 to 19 mm wide.The species was first formally described by English botanist James Edward Smith in 1791 in Transactions of the Linnean Society of London He described it with reference to a cultivated plant at Syon House which had been raised by Thomas Hoy from seed that originated from New South Wales. The species was transferred into the genus Acacia by C.L. Wildenow in 1806.The species occurs naturally on sandy soils in heathland and dry sclerophyll forest in South Australia and Victoria, Tasmania, New South Wales and Queensland.

Acacia sericocarpa

Acacia sarcophylla is a species of legume in the Fabaceae family. It is a perennial shrub found in Somalia and Yemen. It is threatened by habitat loss, and is on the World Conservation Union Red List.

Acacia rhodophloia is a tree or shrub belonging to the genus Acacia and the subgenus Juliflorae. It is native to a large area in the Northern Territory and the Pilbara, Goldfields, Mid West and Kimberley regions of Western Australia.The tree or shrub typically grows to a height of 1.5 to 4 metres (5 to 13 ft). It has Minni ritchi bark and blooms from May to October producing yellow flowers.

Acacia retinodes is an evergreen shrub that is native to South Australia, Victoria and Tasmania. Short racemes of yellow flowers are produced periodically throughout the year. Some common names are Retinodes water wattle, swamp wattle, wirilda, ever-blooming wattle and silver wattle. It grows to a height of 6-10m.

* Acacia floribunda sensu auct.
* Acacia fragrans Pottier
* Acacia longissima Chopinet
* Acacia provincialis A. Camus
* Acacia retinodes Schltdl. var. floribunda H.Vilm.
* Acacia retinoide Schltr.
* Acacia retinoides Schltr.
* Acacia rhetinoides Schltr.
* Acacia rostellifera sensu auct.
* Acacia semperflorens A. Berger

Acacia sulcaticaulis

A. stricta

Coojong

A. subcontorta

Acacia salicina is a thornless species of Acacia tree native to Australia.Common names include Cooba, Native Willow, Willow Wattle, Broughton Willow,Sally Wattle and Black Wattle.It is a large shrub or small evergreen tree growing 3 to 20 m tall. It has a life span of about 10–15 years. In the Northern Hemisphere, Acacia salicina flowers primarily from October to January and the seed pods are often visible from April to July.

Acacia resinosa

Acacia stigmatophylla

A. subtiliformis

A. shuttleworthii

A. sulcata

A. startii

Acacia rhodophloia

Acacia scirpifolia is a shrub or tree of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Mid West and Wheatbelt regions of Western Australia.The dense shrub or tree typically grows to a height of 1 to 4 metres (3 to 13 ft). It blooms from August to October and produces yellow flowers.

A. rigens

*Acacia chordophylla (Benth.)
*Racosperma rigens ( Pedley)

A. retrorsa

Acacia subracemosa is a shrub of the genus Acacia and the subgenus Pulchellae. It is native to an area in the South West region of Western Australia.The spreading shrub typically grows to a height of 1.8 to 5 metres (6 to 16 ft). It blooms from September to November and produces cream-yellow flowers.

Acacia stenophylla

Acacia spectabilis, commonly known as Mudgee wattle, is an erect or spreading shrub, endemic to Australia. Alternative common names include glory wattle, Pilliga wattle and golden wattleIt grows to between 1.5 and 4 metres high and has pinnate leaves. The bright-yellow globular flowerheads appear in axillary racemes, mostly between July and November in its native range.

A. rostellifera

Acacia stricta (hop wattle, straight wattle) is a perennial tree.

Acacia spinescens is a shrub belonging to the genus Acacia and the subgenus Alatae. It is native to New South Wales, South Australia and Victoria.

A. spondylophylla

Acacia stricta var. pleiocephala

A. sessilispica

A. suaveolens

Acacia synchronicia is a shrub or tree of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Kimberley, Pilbara, Mid West and Goldfields-Esperance regions of Western Australia.The spreading spinescent shrub or tree typically grows to a height of 1.5 to 3 metres (5 to 10 ft). It blooms from August to December and produces yellow flowers.

Acacia semperflorens

A. subflexuosa

A. resinosa

Benth., 1842
Acacia rostellifera, commonly known as summer-scented wattle or skunk tree is a coastal tree or small tree in the family Fabaceae. Endemic to Western Australia, it occurs along the west coast as far north as Kalbarri in the Southwest Australia savanna ecoregion, and along the south coast as far east as Israelite Bay.The summer-scented wattle generally reproduces by suckers from underground stems. Because of this suckering, the species often forms thickets that exclude all other species.

Acacia spathulifolia commonly known as Gold carpet or the Gold carpet wattle is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Mid West, Wheatbelt and Gascoyne regions of Western Australia.The dense spreading shrub typically grows to a height of 0.5 to 3.0 metres (1.6 to 9.8 ft). It blooms profusely from June to October and produces yellow flowers.The spoon shaped foliage and golden flowers make the plant an ideal feature groundcover.

Acacia sphacelata

A. sibilans

Acacia subrigida

Rice's wattle

Acacia subcontorta

Acacia sinaloensis

A. sclerophylla

Court ex Maslin & D.J.Murphy

*Acacia suaveolens( (Sm.) Willd.) subsp. suaveolens

A. smeringa

A. semitrullata

*Acacia emarginata (Wendl.)
*Acacia leprosa auct. non (DC.)
*Acacia stricta ( Willd.) var. binervis (F.Muell.)
*Acacia stricta ( Willd.) var. pleiocephala (F.Muell.)
*Mimosa stricta (Andrews)
*Phyllodoce stricta ( Link)
*Racosperma strictum ( C.Mart.)

A. retinervis

A. stipulosa

Acacia smeringa is a shrub belonging to the genus Acacia and the subgenus Lycopodiifoliae. It is native to an area in the Kimberley region of Western Australia.The erect viscid shrub typically grows to 1 metre (3 ft).

Acacia stipulosa is a shrub of the genus Acacia and the subgenus Plurinerves. It is native to an area in the Northern Territory and Kimberley region of Western Australia.The viscid prickly shrub typically grows to a height of 2 metres (7 ft). It blooms in July and produces yellow flowers.

A. semicircinalis
Acacia semicircinalis is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to a small area in the Wheatbelt region of Western Australia.The wiry diffuse shrub typically grows to a height of 0.3 to 1.0 metre (1 to 3 ft). It blooms from August to January and produces yellow flowers.

* Acacia retinodes Schltdl.var.floribundaH.Vilm.

A. sarcophylla

Acacia salinarum

Acacia startii

Acacia scabra is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to Western Australia.

Acacia smeringa

Acacia synantha

*Acacia stricta (Andrews) Willd.) var. pleiocephala (F.Muell.)

*Mimosa ambigua( K.D.Koenig & Sims nom. illeg.)
*Acacia suaveolens subsp. prostrata (D.A.Morrison & A.J.Rupp)

Acacia subrigida is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Wheatbelt, Mid West and Goldfields-Esperance regions of Western Australia.The erect shrub typically grows to a height of 1 to 3 metres (3 to 10 ft). It blooms from August to October and produces yellow flowers.

Acacia restiacea is a species of Acacia which is native to the south-west of Western Australia. It is a small, leafless shrub that grows from 0.5 metres to 1.5 metres high. It flowers from late winter to late spring.

Acacia richii

Bastard mulga

Acacia scapuliformis

Acacia seclusa is a small tree belonging to the genus Acacia and the subgenus Juliflorae. It is native to a small area in the Kimberley region of Western Australia.The tree typically grows to a height of 6 metres (20 ft). It blooms from August producing yellow flowers and is mostly found in riparian areas.

Acacia singula is a shrub belonging to the genus Acacia and the subgenus Juliflorae. It is native to an area in the Goldfields-Esperance and Wheatbelt regions of Western Australia.The shrub typically grows to a height of 0.35 to 2 metres (1 to 7 ft). It blooms from August to October producing yellow flowers.

*Acacia leprosa (Dandenong Range variant)

Acacia sessilispica

A. sorophylla

Acacia storyi is a species of Acacia native to eastern Australia.The shrub or tree typically grows to 6 metres (20 ft) in height. It has smooth grey-green bark, purplish-red branchlets and dark green subcoriaceous leaves that are 1.2 to 2.3 centimetres (0.5 to 0.9 in) long.

Acacia stricta

A. rostellata

Acacia cyanophylla Lindley

Spreading gidgee

Acacia stipuligera is a tree or shrub belonging to the genus Acacia and the subgenus Juliflorae. It is native to a northern Australia.The tree or shrub typically grows to a height of 1 to 4 metres (3 to 13 ft). It blooms from May to September producing yellow flowers.In Western Australia the species is found in the Kimberley and Pilbara regions.

A. sericocarpa

Acacia semicircinalis

Curry wattle

A.Cunn. ex G.Don

A. synoria

Hop wattle

A. scalena

Racosperma spectabile ( Pedley)

A. robeorum

IUCN2.3

Acacia sclerosperma

A. stanleyi

A. subulata

Acacia strigosa

Acacia sclerosperma, commonly known as limestone wattle or silver bark wattle, is a tree in the family Fabaceae. Endemic to Western Australia, it occurs on floodplains and along water-courses throughout the arid north-west corner of the State.Limestone wattle grows as a spreading, tall shrub up to four metres high and six metres wide. Like most Acacia species, it has phyllodes rather than true leaves. These are bright green, oval in cross-section, and may be up to seven centimetres long.

Racosperma spectabile (A.Cunn. ex Benth.) Pedley)

Acacia retinoide

Acacia retrorsa is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Wheatbelt and Mid West regions of Western Australia.The spreading prostrate shrub typically grows to a height of 0.05 to 0.5 metres (0 to 2 ft). It blooms from August to September and produces yellow flowers.

A. symonii

*Acacia pruinosa auct. non Benth.

Acacia sibina

A. stictophylla

A. tayloriana

Acacia subtessarogona, commonly known as spreading gidgee, is a tree in the family Fabaceae. Endemic to Western Australia, it occurs only in a small area of the Gascoyne River catchment near Carnarvon.Spreading gidgee grows as an upright tree to seven metres high. Like most Acacia species, it has phyllodes rather than true leaves. These are flat, curved, and about eleven centimetres long. The flowers are yellow.

A. stereophylla

Acacia subcontorta is a shrub belonging to the genus Acacia and the subgenus Juliflorae. It is native to a large area in the Pilbara and northern Goldfields regions of Western Australia.

Acacia sundra

Acacia suaveolens at Anglesea Heath, Victoria

A. seclusa

A. subtessarogona

Acacia scabra

A. richardsii

Acacia saligna, commonly known by various names including coojong, golden wreath wattle, orange wattle, blue-leafed wattle, Western Australian golden wattle, and, in Africa, Port Jackson willow, is a small tree in the family Fabaceae. Native to Australia, it is widely distributed throughout the south west corner of Western Australia, extending north as far as the Murchison River, and east to Israelite Bay. The Noongar peoples know the tree as Cujong.

Acacia sessilis is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area along the west coast in the Wheatbelt and Peel regions of Western Australia.The diffuse, straggly and pungent shrub typically grows to a height of 0.3 to 1.0 metre (1.0 to 3.3 ft). It blooms from July to October and produces yellow flowers.

A. saligna

A. roycei

Acacia stipuligera

Acacia ridleyana

A. steedmanii

A.Cunn. ex Benth.

Acacia robynsiana

*Acacia leprosa var. elongata (Guilf. nom. inval.)

Acacia scalpelliformis is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area along the south coast in the South West and Great Southern regions of Western Australia.The erect prickly shrub typically grows to a height of 0.5 to 2.0 metres (2 to 7 ft). It blooms in September and produces yellow flowers.

A. stipuligera

Acacia steedmanii is a shrub or tree of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Wheatbelt, Pilbara and Goldfields regions of Western Australia.The shrub or tree typically grows to a height of 1 to 4 metres (3 to 13 ft). It blooms from August to September and produces yellow flowers.There are two recognised subspecies:Acacia steedmanii subsp. borealisAcacia steedmanii subsp. steedmanii

A. spongolitica

Acacia sericocarpa is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Wheatbelt and Goldfields-Esperance regions of Western Australia.The spreading shrub typically grows to a height of 0.4 to 2.0 metres (1.3 to 6.6 ft). It blooms from August to September and produces yellow flowers.

*Acacia suaveolens( var. platycarpa DC.)

Pedley

Acacia scleroclada is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Mid West and Wheatbelt regions of Western Australia.The spreading pungent shrub typically grows to a height of 0.5 to 1.2 metres (2 to 4 ft). It blooms from June to September and produces yellow flowers.

Acacia salicina is a thornless species of Acacia tree native to Australia.Common names include Cooba, Native Willow, Willow Wattle, Broughton Willow,Sally Wattle and Black Wattle.It is a large shrub or small evergreen tree growing 3 to 20 m tall. It has a life span of about 10–15 years. In the Northern Hemisphere, Acacia salicina flowers primarily from October to January and the seed pods are often visible from April to July. The tree's seeds are shiny, black and have a crimson appendage-like aril. Acacia salicina is "closely related" to Acacia ligulata and Acacia bivenosa.

*Acacia leprosa
*Acacia leprosa var. elongata (Guilf. nom. inval.)
*Acacia leprosa var. Reclinata ( Vic. Herbarium )
*Acacia leprosa

A. ridleyana

A. riceana

A. sphacelata

Acacia stenocarpa

A. sabulosa

A. strongylophylla

* Acacia salicina Lindl. var. varians (Benth.)Benth.

Acacia suma

A. scabra

Acacia stictophylla, Dandenong Ranges, Victoria

Acacia rhamphophylla

Acacia retinodes

Acacia sclerosperma, commonly known as limestone wattle or silver bark wattle, is a tree in the family Fabaceae. Endemic to Western Australia, it occurs on floodplains and along water-courses throughout the arid north-west corner of the State.Limestone wattle grows as a spreading, tall shrub up to four metres high and six metres wide. Like most Acacia species, it has phyllodes rather than true leaves. These are bright green, oval in cross-section, and may be up to seven centimetres long. The flowers are yellow, and held in cylindrical clusters about five millimetres in diameter. The pods are up to 14 centimetres long, with constrictions between the seeds.centimetres wide.There are two subspecies: Acacia sclerosperma subsp. sclerosperma and Acacia sclerosperma subsp. glaucescens. The latter is commonly known as billy blue, and is currently considered under threat, though not yet endangered.

Acacia suaveolens (sweet wattle) is a shrub species endemic to Australia. It grows to between 0.3 and 3.5 metres high and has smooth purplish-brown or light green bark and has straight or slightly curving blue-green phyllodes The pale yellow to near white globular flowerheads generally appear between April and September in its native range.

Acacia robusta

A. rossei

A. sibirica

Acacia scorpioides

Tindale & Maslin

Acacia sclerophylla, commonly known as the Hard-leaf wattle, is a shrub of the genus Acacia and the subgenus Plurinerves. It is native to southern areas in South Australia and Victoria as welll as an area in the Wheatbelt and Goldfields-Esperance regions of Western Australia.The shrub typically grows to a height of 0.2 to 2.5 metres (1 to 8 ft). It blooms from August to October and produces yellow flowers.There are three known varieties:Acacia sclerophylla var. pilosaAcacia sclerophylla var.

Acacia riceana, commonly known as Rice's wattle, is a small, fast-growing, evergreen shrub to small tree in the legume family endemic to the southeast corner of Tasmania.

A. singula

A. subsessilis