Grevillea insignis
| Grevillea insignis | |
|---|---|
 | |
| Subspecies insignis in the Royal Botanic Gardens, Cranbourne | |
 | |
| Subspecies elliotii in the Royal Botanic Gardens, Cranbourne | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Embryophytes |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Proteales |
| Family: | Proteaceae |
| Genus: | Grevillea |
| Species: | G. insignis |
| Binomial name | |
| Grevillea insignis | |
Grevillea insignis, commonly known as wax grevillea,[3] is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is an erect, bushy shrub with more or less oblong leaves with seven to seventeen sharply-pointed, triangular teeth, and more or less spherical or cylindrical clusters of cream-coloured flowers ageing to pink.
Description
Grevillea insignis is an erect, bushy shrub that typically grows to a height of 1–4 m (3 ft 3 in – 13 ft 1 in). Its leaves are more or less oblong, 29–90 mm (1.1–3.5 in) long and 20–40 mm (0.79–1.57 in) wide with seven to seventeen sharply-pointed triangular teeth or lobes 3–8 mm (0.12–0.31 in) long and wide. The flowers are cream-coloured, ageing to pink and are arranged in more or less spherical to cylindrical, sometimes branched clusters on a rachis 10–25 mm (0.39–0.98 in) long. The pistil is 11–20 mm (0.43–0.79 in) long, and the ovary is densely shaggy-hairy. Flowering occurs from June to December and the fruit is an oblong follicle 10–14 mm (0.39–0.55 in) long.[3][4][5]
Taxonomy
Grevillea insignis was first formally described in 1855 by Carl Meissner in Hooker's Journal of Botany and Kew Garden Miscellany based on material collected by James Drummond.[6][7] The specific epithet (insignis) means "remarkable" or "distinguished".[8]
In 1993, In 1994 Peter M. Olde and Neil R. Marriott described two subspecies of G. insignis in the journal Nuytsia and the names are accepted by the Australian Plant Census:[5]
- Grevillea insignis subsp. elliotii Olde & Marriott.[9] differs from the autonym in having branchlets that are not glaucous and leaves with a wedge-shaped base with wider spaces between the lobes;[5][10][11]
- Grevillea insignis Kippist ex Meisn. subsp. insignis[12] has glaucous branchlets and leaves with narrow bases and narrow spaces between the lobes.[5][13][14]
Distribution and habitat
Subspecies elliotii grows in woodland and shrubland in a restricted area east of Varley and subsp. insignis grows in mallee and heathy shrubland between Tammin, Nyabing and Tarin Rock.[10][11][13][14]
Conservation status
Grevillea insignis is listed as 'Endangered' in the IUCN Red List.
Subspecies insignis is listed as 'Not Threatened'[13] but subsp. elliotii is classified as 'Priority Three' by the Government of Western Australia Department of Biodiversity, Conservation and Attractions,[10] meaning that it is poorly known and known from only a few locations but is not under imminent threat.[15]
References
- ↑ Keighery, G.; Olde, P. (2020). "Grevillea insignis". IUCN Red List of Threatened Species. 2020 e.T113021686A113308136. doi:10.2305/IUCN.UK.2020-2.RLTS.T113021686A113308136.en. Retrieved 14 August 2026.
- ↑ "Grevillea insignis". Australian Plant Census. Retrieved 26 May 2022.
- 1 2 "Grevillea insignis". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
- ↑ "Grevillea insignis". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 26 May 2022.
- 1 2 3 4 Olde, Peter M.; Marriott, Neil R. (1993). "New species and taxonomic changes in Grevillea (Proteaceae: Grevilleoideae) from south-west Western Australia". Nuytsia. 9 (2): 283–287. Retrieved 26 May 2022.
- ↑ "Grevillea insignis". APNI. Retrieved 26 May 2022.
- ↑ Meisner, Carl (1855). Hooker, William Jackson (ed.). "New Proteaceae of Australia". Hooker's Journal of Botany and Kew Garden Miscellany. 7: 76. Retrieved 26 May 2022.
- ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 224. ISBN 9780958034180.
- ↑ "Grevillea insignis subsp. elliotii". Australian Plant Census. Retrieved 26 May 2022.
- 1 2 3 "Grevillea insignis subsp. elliotii". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
- 1 2 "Grevillea insignis subsp. elliotii". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 26 May 2022.
- ↑ "Grevillea insignis subsp. insignis". Australian Plant Census. Retrieved 26 May 2022.
- 1 2 3 "Grevillea insignis subsp. insignis". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
- 1 2 "Grevillea insignis". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 26 May 2022.
- ↑ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 26 May 2022.