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Senna, the sennas, is a large genus of flowering plants in the legume family. This diverse genus is native throughout the tropics, with a small number of species in temperate regions. The number of species is estimated to be from about 260 to 350. The type species for the genus is Senna alexandrina. About 50 species of Senna are known in cultivation.
Senna artemisioides, commonly known as silver cassia, is a species of flowering plant in the family Fabaceae and is endemic to Australia, where it is found in all mainland states and territories. It is a small, woody shrub with silver-green leaves and yellow flowers.
Senna acclinis, commonly known as rainforest cassia or brush senna, is a species of flowering plant in the family Fabaceae and is endemic to near-coastal areas of eastern Australia. It is a shrub with pinnate leaves and bright golden yellow flowers in groups of two to five and long, narrow seed pods. It is similar to other species of Senna that are environmental weeds.
Senna aciphylla, commonly known as sprawling senna or Australian senna, is a species of flowering plant in the family Fabaceae and is endemic to eastern Australia. It is a sprawling shrub with pinnate leaves with eight to twelve pairs of linear to narrowly elliptic leaflets, and yellow flowers in pairs or groups of three.
Senna barclayana, commonly known as smooth senna or pepper-leaf senna, is a species of flowering plant in the family Fabaceae and is endemic to eastern Australia. It is a herbaceous perennial or subshrub with pinnate leaves with six to ten pairs of lance-shaped or narrowly elliptic leaflets, and yellow flowers in groups of six to ten.
Senna charlesiana is a species of flowering plant in the family Fabaceae and is endemic to Western Australia. It is an erect shrub with cylindrical leaves, sometimes with one or two pairs of cylindrical leaflets, and yellow flowers arranged in pairs or groups of three or four, with ten fertile stamens in each flower.
Senna circinnata, commonly known as coiled cassia, is a species of flowering plant in the family Fabaceae and is endemic to eastern Australia. It is a shrub or small tree with pinnate leaves with one to three pairs of egg-shaped leaflets, and small groups of yellow flowers in upper leaf axils.
Senna cladophylla is a species of flowering plant in the family Fabaceae and native to Western Australia and the Northern Territory. It is a perennial herb or undershrub with pinnate leaves with two or three pairs of broadly elliptic leaflets, and yellow flowers arranged in pairs, with ten fertile stamens in each flower.
Senna clavigera, commonly known as pepper leaf senna, is a species of flowering plant in the family Fabaceae and is endemic to eastern Australia. It is a perennial herb with pinnate leaves with four to seven pairs of lance-shaped to elliptic leaflets, and groups of four to twenty yellow flowers in upper leaf axils.
Senna coronilloides, commonly known as brigalow senna, is a species of flowering plant in the family Fabaceae and is endemic to eastern Australia. It is an erect, sprawling shrub with pinnate leaves with nine to twelve pairs of elliptic leaflets, and groups of three to five yellow flowers in upper leaf axils.
Senna ferraria is a species of flowering plant in the family Fabaceae and is endemic to north-western Western Australia. It is an erect shrub with pinnate leaves with three to four pairs of broadly elliptic to egg-shaped leaflets, and yellow flowers arranged in groups of about twelve, with ten fertile stamens in each flower.
Senna flexuosa is a species of flowering plant in the family Fabaceae and is endemic to Western Australia. It is an erect or spreading shrub with pinnate leaves with ten to thirteen pairs of egg-shaped leaflets, and yellow flowers arranged in groups of three to five, with ten fertile stamens in each flower.
Senna glaucifolia is a species of flowering plant in the family Fabaceae and is endemic to arid Central Australia. It is an erect shrub with pinnate leaves with two to four pairs of elliptic leaflets, and yellow flowers arranged in groups of four to seven, with ten fertile stamens in each flower.
Senna hamersleyensis, commonly known as creeping senna, is a species of flowering plant in the family Fabaceae and is endemic to the north of Western Australia. It is an erect, spreading or prostrate shrub with pinnate leaves with two to four pairs of broadly elliptic to egg-shaped leaflets, and yellow flowers arranged in groups of four or five, with ten fertile stamens in each flower.
Senna leptoclada is a species of flowering plant in the family Fabaceae and is endemic to Arnhem Land in northern Australia. It is a glaucous, erect to drooping shrub with pinnate leaves usually with two pairs of broadly elliptic leaflets, and yellow flowers arranged in groups of two or three, with ten fertile stamens in each flower.
Senna manicula is a species of flowering plant in the family Fabaceae and is endemic to inland Western Australia. It is an erect shrub with pinnate leaves with three or four pairs of linear leaflets, and yellow flowers arranged singly or in pairs, with ten fertile stamens in each flower.
Senna oligoclada is a species of flowering plant in the family Fabaceae and is endemic to northern Australia. It is an erect shrub with pinnate leaves with one to three pairs of elliptic to egg-shaped leaflets, and yellow flowers arranged in groups of three to five with ten fertile stamens in each flower.
Senna pilocarina is a species of flowering plant in the family Fabaceae and is endemic to inland Western Australia. It is a prostrate or upright, spreading shrub with pinnate leaves with five to nine pairs of oblong to wedge-shaped leaflets, and yellow flowers arranged in groups of four or five, with ten fertile stamens in each flower.
Senna pleurocarpa, commonly known as fire bush or chocolate bush, is a species of flowering plant in the family Fabaceae and is endemic to Australia. It is a spreading shrub with pinnate leaves with five to seven pairs of broadly elliptic to egg-shaped leaflets, and groups of five to twelve yellow flowers arranged in dense groups of twenty to sixty on the ends of branches and in upper leaf axils.
Senna stowardii is a species of flowering plant in the family Fabaceae and is endemic to inland, southern Western Australia. It is an erect, dense shrub with pinnate leaves, usually with nine to fourteen pairs of linear to narrowly elliptic leaflets, and yellow flowers arranged in groups of three to five, with ten fertile stamens in each flower.
References
- 1 2 "Randell, Barbara Rae | International Plant Names Index". www.ipni.org.
- ↑ Randell, Barbara. "About My Memoir". Barbara Randell. Retrieved 2024-04-09.
- ↑ International Plant Names Index. Randell.
- ↑ "Trove". trove.nla.gov.au.
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