Thysanotus sabulosus
| Thysanotus sabulosus | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Embryophytes |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Asparagaceae |
| Subfamily: | Lomandroideae |
| Genus: | Thysanotus |
| Species: | T. sabulosus |
| Binomial name | |
| Thysanotus sabulosus N.H.Brittan[1] | |
Thysanotus sabulosus is a species of flowering plant in the Asparagaceae family, and is endemic to the south-west of Western Australia. It is a perennial herb with a cylindrical rootstock, fibrous roots, about twelve perennial leaves and umbels of up to three flowers with narrowly elliptic sepals, egg-shaped, fringed petals and six stamens of differing lengths.
Description
Thysanotus sabulosus is a perennial herb with a cylindrical rootstock about 5 mm (0.20 in) in diameter, fibrous roots, and about twelve apparently perennial leaves, the innermost leaves 40–50 mm (1.6–2.0 in) long and the outermost leaves almost bract-like. The flowers are borne in panicles about 200 mm (7.9 in) long with umbels of up to three flowers, each on a pedicel 3–6 mm (0.12–0.24 in) long. The perianth segments are 10–12 mm (0.39–0.47 in) long, the sepals narrowly elliptic, about 1.5–2.0 mm (0.059–0.079 in) wide, and the petals egg-shaped, about 6 mm (0.24 in) wide, with a fringe 3 mm (0.12 in) long. There are six stamens, the three outer anthers 4 mm (0.16 in) long and the inner anthers 5 mm (0.20 in) long. The style is 5–6 mm (0.20–0.24 in) long. Flowering occurs from October to December, and the seeds are more or less cylindrical, about 1.5 mm (0.059 in) long and 1.0 mm (0.039 in) in diameter, with a stalked, yellow to orange aril.[2][3][4]
Taxonomy
Thysanotus sabulosus was first formally described in 1972 by Norman Henry Brittan in the Journal of the Royal Society of Western Australia from specimens he collected 17 mi (27 km) west of Newdegate on the Newdegate-Lake Grace road in 1960.[2][5] The specific epithet (sabulosus) means 'growing in sandy places'.[6]
Distribution and habitat
This species of Thysanotus grows in deep yellow sand and lateritic gravel on sandplains near Newdegate and Kulin, in the Avon Wheatbelt and Mallee bioregions of south-western Western Australia.[3][4]
Conservation status
Thysanotus sabulosus is listed as "Priority One" by the Western Australian Government Department of Biodiversity, Conservation and Attractions,[4] meaning it is known from only a few populations that are under immediate threat from known threatening processes.[7]
References
- ↑ "Thysanotus sabulosus". Australian Plant Census. Retrieved 22 March 2026.
- 1 2 Brittan, Norman H. (1972). "New Western Australian species of Thysanotus R.Br. (Liliaceae)". Journal of the Royal Society of Western Australia. 54 (3): 87–90. Retrieved 23 March 2026.
- 1 2 Brittan, Norman H. "Thysanotus sabulosus". Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra. Retrieved 23 March 2026.
- 1 2 3 "Thysanotus sabulosus". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
- ↑ "Thysanotus sabulosus". Australian Plant Name Index. Retrieved 23 March 2026.
- ↑ George, Alex S.; Sharr, Francis A. (2023). Western Australian Plant Names and Their Meanings - A Glossary (fifth ed.). Kardinya: Four Gables Press. p. 311. ISBN 9780645629538.
- ↑ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 23 March 2026.