Gnephosis gynotricha
| Gnephosis gynotricha | |
|---|---|
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Gnephosis |
| Species: | G. gynotricha
|
| Binomial name | |
| Gnephosis gynotricha | |
Gnephosis gynotricha is a species of flowering plant in the family Asteraceae and is endemic to the north of Western Australia. It is an annual herb with linear or narrowly elliptic leaves, compound heads of yellow flowers, and cone-shaped cypselas.
Description
Gnephosis gynotricha is an annual herb with main branches 2–18 cm (0.79–7.09 in) long with a few hairs. Its leaves are linear or narrowly elliptic, 5–45 mm (0.20–1.77 in) long and 0.5–2.5 mm (0.020–0.098 in) wide. The pseudanthia are arranged in broadly ellipic to elliptic or egg-shaped compound heads of 20 to 100 and 4.5–18 mm (0.18–0.71 in) long and 5–10 mm (0.20–0.39 in) wide with four bracts in two rows, the outer bracts 1.3–2.2 mm (0.051–0.087 in) long, the inner bracts 2.6–3.2 mm (0.10–0.13 in) long. The petals are yellow and form a tube 1.5–2 mm (0.059–0.079 in) long and there are five stamens. Flowering has been observed from August to September and the cypselas are conical, 0.85–1.05 mm (0.033–0.041 in) long with long, straight hairs, but there is usually no pappus.[2][3]
Taxonomy and naming
Gnephosis gynotricha was first formally described in 1905 by Ludwig Diels in Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie from specimens he collected near Carnarvon.[4][5] The specific epithet (gynotricha) means 'hairy woman', referring to the hairy ovary.[6]
Distribution and habitat
Gnephosis gynotricha grows in sand or loam in arid shrubland on undulating plains and sandhills in the Carnarvon and Yalgoo bioregions of northern Western Australia.[2][3]
References
- ^ "Gnephosis gynotricha". Australian Plant Census. Retrieved 15 June 2025.
- ^ a b "Gnephosis gynotricha". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
- ^ a b Short, Philip Sydney (2016). "Notes concerning the classification of species included in Calocephalus R.Br. s.lat. and Gnephosis Cass. s.lat. (Asteraceae: Gnaphalieae), with descriptions of new genera and species". Journal of the Adelaide Botanic Gardens. 29: 203–204. Retrieved 15 June 2025.
- ^ "Gnephosis gynotricha". Australian Plant Name Index. Retrieved 8 June 2025.
- ^ Diels, Ludwig (1905). "Fragmenta Phytographiae Australiae occidentalis. Beitrage zur Kenntnis der Pflanzen Westaustraliens, ihrer Verbreitung und ihrer Lebensverhaltnisse". Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie. 35 (4): 613. Retrieved 15 June 2025.
- ^ George, Alex; Sharr, Francis (2021). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 212. ISBN 9780958034180.