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.
| Grevillea tetragonoloba | |
|---|---|
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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 | |
Description
editGrevillea 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
editGrevillea 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
editThis 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
editGrevillea 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.