Dillwynia acerosa is a species of flowering plant in the family Fabaceae and is endemic to Western Australia. It is an erect spindly shrub with hairy, needle-shaped leaves and yellow flowers.
| Dillwynia acerosa | |
|---|---|
.jpg)
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Subfamily: | Faboideae |
| Genus: | Dillwynia |
| Species: | D. acerosa
|
| Binomial name | |
| Dillwynia acerosa | |
Description
editDillwynia acerosa is an erect, spindly shrub that typically grows to a height of up to 50 cm (20 in) with hairy stems that are round in cross-section. The leaves or phylloclades are arranged alternately, needle-shaped, 3–9 mm (0.12–0.35 in) long and 0.5–1 mm (0.020–0.039 in) wide. The flowers are arranged on the ends of branchlets, each flower on a hairy pedicel 1–2.5 mm (0.039–0.098 in) long with hairy sepals 5–6 mm (0.20–0.24 in) long. The standard petal is 6.8–10 mm (0.27–0.39 in) long, the wings 6–10 mm (0.24–0.39 in) long and the keel 5–7 mm (0.20–0.28 in) long. There are ten stamens, the style is hairy and 1.2–2 mm (0.047–0.079 in) long. Flowering occurs in September and the fruit is a follicle that is not constricted between the seeds.[2]
Taxonomy and naming
editDillwynia acerosa was first formally described in 1899 by Spencer Le Marchant Moore in Journal of the Linnean Society, Botany.[3][4] The specific epithet (acerosa) means "needle-shaped", referring to the leaves.[5]
Distribution
editThis goodenia grows gravelly clay in the Coolgardie, Esperance Plains, Jarrah Forest, Mallee, Murchison and Nullarbor biogeographic regions of Western Australia.[2]
Conservation status
editDillwynia acerosa is classified as "not threatened" by the Government of Western Australia Department of Parks and Wildlife.[2]
References
edit- ^ "Dillwynia acerosa". Australian Plant Census. Retrieved 16 May 2021.
- ^ a b c "Dillwynia acerosa". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
- ^ "Dillwynia acerosa". APNI. Retrieved 16 May 2021.
- ^ Moore, Spencer le Marchant (1899). "The Botanical Results of a Journey into the Interior of Western Australia". Journal of the Linnean Society, Botany. 34: 187–188. Retrieved 16 May 2021.
- ^ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 126. ISBN 9780958034180.