Grevillea tetragonoloba
| Grevillea tetragonoloba | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Proteales |
| Family: | Proteaceae |
| Genus: | Grevillea |
| Species: | G. tetragonoloba
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| Binomial name | |
| Grevillea tetragonoloba | |
Grevillea tetragonoloba is species of flowering plant in the family Proteaceae and is endemic to the southwest of Western Australia. It is a dense, erect to spreading shrub, usually with pinnatipartite to almost pinnatisect leaves, the end lobes linear, and clusters of yellowish-brown to fawn flowers with a scarlet to orange-red style.
Description
[edit]Grevillea tetragonoloba is dense, erect to spreading shrub that typically grows to a height of 2.0–2.5 m (6 ft 7 in – 8 ft 2 in). Its leaves are 60–130 mm (2.4–5.1 in) long and mostly pinnatipartite to almost pinnatisect with 3 to 13 lobes, the end lobes linear, 30–130 mm (1.2–5.1 in) long, 0.8–1.5 mm (0.031–0.059 in) wide, sharply pointed and rectangular in cross-section. The flowers are arranged on one side of a rachis 45–115 mm (1.8–4.5 in) long, the flowers yellowish-brown to fawn with a scarlet to orange-red style, the pistil 22–25 mm (0.87–0.98 in) long. Flowering occurs throughout the year with a peak between October and March, and the fruit a follicle 10–15 mm (0.39–0.59 in) long.[3][4][5][6]
Taxonomy
[edit]Grevillea tetragonoloba was first formally described in 1856 by Carl Meissner in de Candolle's Prodromus Systematis Naturalis Regni Vegetabilis from specimens collected by James Drummond in the Swan River Colony.[7][8] The specific epithet (tetragonoloba) means "four-angled lobe", referring to the cross-sectional shape of the leaf lobes.[9]
Distribution and habitat
[edit]This grevillea grows in mallee heath, woodland and shrubland between Cape Riche and Needilup and near Bremer Bay in the Esperance Plains, Jarrah Forest and Mallee bioregions of south-western Western Australia.[4][3]
Conservation status
[edit]Grevillea tetragonoloba is listed as "not threatened" by the Western Australian Government Department of Biodiversity, Conservation and Attractions.[3] Grevillea tetragonoloba is listed as Endangered by the IUCN Red List and it's main threats include road and agriculture construction and weed invasion
References
[edit]- ^ Makinson, R.; Monks, L.; Keighery, G. (23 November 2024). "Grevillea tetragonoloba". IUCN Red List. Retrieved 23 November 2024.
- ^ "Grevillea tetragonoloba". Australian Plant Census. Retrieved 21 March 2023.
- ^ a b c "Grevillea tetragonoloba". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
- ^ a b "Grevillea tetragonoloba". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 21 March 2023.
- ^ Wrigley, John W.; Fagg, Murray A. (1991). Banksias, waratahs & grevilleas : and all other plants in the Australian Proteaceae family. North Ryde, NSW, Australia: Angus & Robertson. pp. 339–340. ISBN 0207172773.
- ^ Olde, Peter M.; Marriott, Neil R. (2009). "Grevillea tetragonoloba (Proteaceae: Grevilleoideae) recircumscribed, with notes on its typification and a new segregate species, Grevillea nivea, described". Nuytsia. 19 (2): 232–237. Retrieved 21 March 2023.
- ^ "Grevillea tetragonoloba". APNI. Retrieved 21 March 2023.
- ^ Meissner, Carl (1856). Prodromus systematis naturalis regni vegetabilis. Vol. 14. Paris: Victoris Masson. p. 374. Retrieved 21 March 2023.
- ^ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 323. ISBN 9780958034180.