Banksia corvijuga
| Banksia corvijuga | |
|---|---|
| |
| Near Lake Grace | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Proteales |
| Family: | Proteaceae |
| Genus: | Banksia |
| Subgenus: | Banksia subg. Banksia |
| Series: | Banksia ser. Dryandra |
| Species: | B. corvijuga
|
| Binomial name | |
| Banksia corvijuga | |
| Synonyms[1] | |
|
Dryandra corvijuga A.S.George | |
Banksia corvijuga is a species of densely-foliaged shrub that is endemic to Western Australia. It has broadly linear, serrated leaves, heads of about sixty yellow flowers and glabrous follicles.
Description
[edit]Banksia corvijuga is a densely-foliaged shrub that typically grows to a height of 1.3 m (4 ft 3 in) but does not form a lignotuber. It has serrated, broadly linear leaves that are 100–200 mm (3.9–7.9 in) long and 5–14 mm (0.20–0.55 in) wide on a thin petiole 20–60 mm (0.79–2.36 in) long, with between ten and twenty-five triangular teeth on each side. The flowers are borne on a head containing about sixty flowers with broadly linear to egg-shaped, dark reddish brown involucral bracts 40–50 mm (1.6–2.0 in) long at the base of the head. The flowers are yellow with a perianth 38–41 mm (1.5–1.6 in) long and a pistil 44–46 mm (1.7–1.8 in) long. Flowering occurs from September to October and the fruit is a glabrous, elliptical to egg-shaped follicle about 15 mm (0.59 in) long.[2][3][4]
Taxonomy and naming
[edit]This banksia was first formally described in 1996 by Alex George in the journal Nuytsia and given the name Dryandra corvijuga from specimens collected in 1986 near Ravensthorpe.[2][5] In 2007, Austin Mast and Kevin Thiele transferred all the dryandras to the genus Banksia and this species became Banksia corvijuga.[6][7] The specific epithet (corvijuga) is derived from Latin words meaning "a crow or raven" and "paired or yoked together", referring to the Ravensthorpe Range.[2]
Distribution and habitat
[edit]Banksia corvijuga grows in dense shrubland in the Ravensthorpe Range.[2][4]
Conservation status
[edit]This banksia is classified as "Priority Three" by the Government of Western Australia Department of Parks and Wildlife[4] meaning that it is poorly known and known from only a few locations but is not under imminent threat.[8]
References
[edit]- ^ a b "Banksia corvijuga". Australian Plant Census. Retrieved 17 April 2020.
- ^ a b c d George, Alex S. (1996). "New taxa and a new infrageneric classification in Dryandra R.Br". Nuytsia. 10 (3): 365.
- ^ George, Alex S. (1999). Flora of Australia (PDF). Vol. 17B. Canberra: Australian Biological Resources Study, Canberra. p. 306. Retrieved 14 April 2020.
- ^ a b c "Banksia corvijuga". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
- ^ "Dryandra corvijuga". APNI. Retrieved 17 April 2020.
- ^ "Banksia corvijuga". APNI. Retrieved 17 April 2020.
- ^ Mast, Austin R.; Thiele, Kevin (2013). "The transfer of Dryandra R.Br. to Banksia L.f. (Proteaceae)". Australian Systematic Botany. 20 (1): 63–71. doi:10.1071/SB06016.
- ^ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 17 April 2020.