Spyridium glaucum is a species of flowering plant in the family Rhamnaceae and is endemic to a restricted area of south-western Western Australia. It is an erect or spreading shrub with egg-shaped leaves, and clusters of 3 to 6 rusty-hairy flowers.
| Spyridium glaucum | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Rosales |
| Family: | Rhamnaceae |
| Genus: | Spyridium |
| Species: | S. glaucum
|
| Binomial name | |
| Spyridium glaucum | |
Description
editSpyridium glaucum is an erect or spreading shrub that typically grows to a height of 0.5–1 m (1 ft 8 in – 3 ft 3 in), its young stems densely hairy, the hairs pressed against the surface. Its leaves are usually egg-shaped with the narrower end towards the base, sometimes oblong to elliptic, 12–16 mm (0.47–0.63 in) long and 5–9 mm (0.20–0.35 in) wide on a petiole 2–4 mm (0.079–0.157 in) long, and with the edges turned down or rolled under. The flowers are borne in heads of 3 to 6, the heads 3–6 mm (0.12–0.24 in) wide and densely covered with rust-coloured hairs. The floral tube is 0.8–1 mm (0.031–0.039 in) long and the sepals 0.7–1.2 mm (0.028–0.047 in) long. Flowering occurs from September to November.[2][3]
Taxonomy
editSpyridium glaucum was first formally described in 1995 by Barbara Lynette Rye in the Nuytsia from specimens collected by Eleanor Marion Bennett near Ravensthorpe in 1979.[2][4] The specific epithet (glaucum) means "bluish-green or grey", referring to the colour of the leaves.[2]
Distribution
editThis spyridium is only known from hills north-east of Ravensthorpe in the Esperance Plains bioregion of south-western Western Australia.[2]
References
edit- ^ "Spyridium glaucum". Australian Plant Census. Retrieved 20 July 2022.
- ^ a b c d Rye, Barbara L. (1995). "New and priority taxa in the genera Spyridium and Trymalium (Rhamnaceae) of Western Australia". Nuytsia. 10 (1): 120–121. Retrieved 20 July 2022.
- ^ "Spyridium glaucum". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
- ^ "Spyridium glaucum". Australian Plant Name Index. Retrieved 20 July 2022.