Richard Sumner Cowan

Swartzia rediviva is a species of flowering plant in the family Fabaceae. It is found only in Suriname.

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Arapatiella psilophylla is a species of legume in the family Fabaceae. The plant is endemic to the Atlantic Forest ecoregion in southeastern Brazil.

Acacia kalgoorliensis is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to an area of south western Australia.

Acacia unguicula is a shrub of the genus Acacia and the subgenus Plurinerves. It is native to a small area in the Mid West region of Western Australia.

Acacia hadrophylla is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a shrub with curved, oblong phyllodes, spherical heads of golden yellow flowers and linear, crusty pods, more or less constricted between the seeds.

Acacia awestoniana, commonly known as the Stirling Range wattle, is a species of flowering plant in the family Fabaceae and is endemic to a restricted area in the south-west of Western Australia. It is a spreading, sticky shrub with wavy, widely elliptic to elliptic, phyllodes, spherical heads of golden-yellow flowers, and narrowly oblong pods up to 22 mm (0.87 in) long.

Jacqueshuberia loretensis is a species of legume in the family Fabaceae. It is found only in Peru.

Acacia xanthocarpa is a shrub belonging to the genus Acacia and the subgenus Juliflorae that is endemic to aris parts of western Australia.

Acacia wilsonii, also known as Wilson's wattle, is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to a small area of western Australia. It was listed as an endangered species in 2018 according to the Environment Protection and Biodiversity Conservation Act 1999 by Australian authorities and according to Biodiversity Conservation Act 2016 by Western Australian authorities.

Acacia whibleyana (common name - Whibley wattle, Whibley's wattle) is a shrub belonging to the genus Acacia, section Plurinerves. It is native to South Australia.

Acacia vittata, commonly known as Lake Logue wattle, is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to a small area in western Australia.

Acacia vincentii is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to an area of north western Australia.

Acacia undosa is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to an area of south western Australia.

Acacia repanda is a shrub belonging to the genus Acacia and the subgenus Juliflorae that is endemic to a small area in western Australia.

Acacia octonervia is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to a small area along the south western coast of Australia.

Acacia nivea is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to south western Australia.

Acacia masliniana, commonly known as Maslin's wattle is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to arid parts of western Australia.

Acacia levata is a shrub belonging to the genus Acacia and the subgenus Juliflorae that is endemic to small arid area of western Australia.

Acacia lanuginophylla, or woolly wattle, is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to south western Australia. It is currently listed as a vulnerable species according to the Environment Protection Biodiversity Conservation Act 1999.

Acacia kenneallyi is a shrub or tree of the genus Acacia and the subgenus Plurinerves that is endemic to north western Australia.

Acacia kalgoorliensis (commonly known as Kalgoorlie Wattle) is a shrub of the genus Acacia and the subgenus Plurinerves. It is native to an area in the Mid West, Wheatbelt and Goldfields-Esperance regions of Western Australia. The dense, rounded and pungent shrub typically grows to a height of 1 to 3 metres (3 to 10 ft). It blooms from July to October and produces yellow flowers.

Acacia hexaneura, also known as Cowell spine-bush, is a species of flowering plant in the family Fabaceae and is endemic to South Australia. It is a dense, spreading, rigid shrub with sessile, linear, rigid, sharply pointed phyllodes, spherical heads of golden yellow flowers and linear, crusty pods.

Acacia gibbosa is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a dense, rounded shrub or tree with glabrous branchlets, narrowly linear phyllodes, oblong to cylindrical head of golden yellow flowers and linear, thinly firmly papery pods.

Acacia gemina is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is an erect, spreading, much-branched shrub with branchlets covered with soft hairs, narrowly oblong or broadly elliptic, leathery phyllodes, spherical heads of golden yellow flowers and linear, strongly curved to coiled pods, raised over and slightly constricted between the seeds.

Acacia formidabilis is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a diffuse, spreading subshrub with softly hairy branchlets, narrowly elliptic or oblong, sharply pointed, leathery phyllodes, spherical heads of pale to deep golden yellow flowers and flat, straight, papery pods.

Acacia donaldsonii, commonly known as Binneringie wattle, is a species of flowering plant in the family Fabaceae and is endemic to the inland areas of Western Australia. It is a shrub or gnarled tree with hairy, resinous branchlets, ascending to erect, terete phyllodes, spherical heads of golden yellow flowers and leathery, linear pods resembling a string of beads.

Acacia demissa is a species of flowering plant in the family Fabaceae and is endemic to inland Western Australia. It is a shrub or tree with pendulous, slender, glabrous branchlets, pendulous linear to narrowly elliptic phyllodes, oblong to cylindrical heads of golden yellow flowers and oblong to narrowly oblong, thick and woody pods.

Acacia declinata is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a prostrate shrub with sessile, sharply pointed phyllodes, spherical heads of golden yellow flowers and linear, thinly leathery pods.

Acacia consobrina is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a spreading shrub with narrowly lance-shaped or oblong phyllodes, spherical heads of golden yellow flowers and thinly leathery, hairy, wavy pods.