Senna goniodes

Senna goniodes
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Fabales
Family:	Fabaceae
Subfamily:	Caesalpinioideae
Genus:	Senna
Species:	S. goniodes
Binomial name
Senna goniodes (A.Cunn. ex Benth.) Randell[1]
Synonyms[1]
Cassia goniodes A.Cunn. ex Benth. Cassia neurophylla W.Fitzg. Cassia oligoclada var. goniodes (A.Cunn. ex Benth.) Domin Cassia oligoclada var. subsinguliflora Domin Cassia oligoclada auct. non F.Muell.: Mueller, F.J.H. von (1876) Cassia oligoclada auct. non F.Muell.: Symon, D.E. (December 1966)

Senna goniodes is a species of flowering plant in the family Fabaceae and is endemic to the far north of Western Australia. It is an erect, slender shrub with pinnate leaves with two or three pairs of narrowly elliptic to elliptic leaflets, and yellow flowers arranged in groups with ten fertile stamens in each flower.

Description

Senna goniodes is an erect, slender, softy-hairy shrub that typically grows to a height of up to 1 m (3 ft 3 in). The leaves are 30–50 mm (1.2–2.0 in) long and pinnate, with two or three pairs of leaflets 20–40 mm (0.79–1.57 in) long and 8–12 mm (0.31–0.47 in) wide, spaced 8–15 mm (0.31–0.59 in) apart, on a petiole 4–10 mm (0.16–0.39 in) long. The flowers are yellow and usually arranged in pairs in leaf axils along the branches, on a peduncle 30–50 mm (1.2–2.0 in) long, each flower on a pedicel 10–15 mm (0.39–0.59 in) long. The petals are 8–10 mm (0.31–0.39 in) long and there are ten fertile stamens in each flower, the anthers about 3 mm (0.12 in) long. Flowering occurs from February to September and the fruit is a flat pod 30–50 mm (1.2–2.0 in) long and 8–10 mm (0.31–0.39 in) wide.[2][3]

Taxonomy

This species was first formally described in 1870 by George Bentham who gave it the name Cassia goniodes in Hooker's Icones Plantarum, from an unpublished description by Allan Cunningham of specimens he collected on the north-west coast of Western Australia.[4][5] In 1989, Barbara Rae Randell transferred the species to the genus Senna as S. goniodes in the Journal of the Adelaide Botanic Gardens.[6] The specific epithet (goniodes) means "angle-like".[7]

Distribution and habitat

Senna goniodes grows near watercourses along the coast in the Central Kimberley, Dampierland, Northern Kimberley and Victoria Bonaparte bioregions of northern Western Australia.[2][3]

Conservation status

Senna goniodes is listed as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions.[2]

References

1. "Senna goniodes". Australian Plant Census. Retrieved 28 June 2023.
2. "Senna goniodes". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
3. "Senna goniodes". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 28 June 2023.
4. "Cassia goniodes". Australian Plant Name Index. Retrieved 28 June 2023.
5. Bentham, George (1870). Hooker, William J. (ed.). Icones Plantarum. Vol. 11. London: Williams and Norgate. pp. 48–49. Retrieved 28 June 2023.
6. "Senna goniodes". Australian Plant Name Index. Retrieved 28 June 2023.
7. Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. pp. 208–209. ISBN 9780958034180.