Grevillea williamsonii: Difference between revisions
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'''''Grevillea williamsonii''''', also known as '''Williamson's Grevillea''', is a shrub which is [[endemic (ecology)|endemic]] to a restricted area in the [[Grampian Ranges|Grampians Ranges]] in western [[Victoria (state)|Victoria]].<ref name=":0">{{Cite web |last=Makinson |first=R.O. |title=Grevillea williamsoni |url=https://profiles.ala.org.au/opus/foa/profile/Grevillea%20williamsonii |access-date=18 June 2024 |website=Atlas of Living Australia}}</ref><ref>{{Cite web |date=6 June 2005 |title=Grevillea williamsonii (Williamson's Grevillea) |url=https://www.dcceew.gov.au/environment/biodiversity/threatened/assessments/grevillea-williamsonii-2005 |access-date=18 June 2024 |website=Australian Government Department of Climate Change, Energy, the Enviromment and Water}}</ref> |
'''''Grevillea williamsonii''''', also known as '''Williamson's Grevillea''', is a shrub which is [[endemic (ecology)|endemic]] to a restricted area in the [[Grampian Ranges|Grampians Ranges]] in western [[Victoria (state)|Victoria]]. It was first described from a single plant in 1893, which was destroyed by bushfire two years later. It was then feared extinct and went unrecorded for 98 years until 12 plants were found in 1995.<ref name=":0">{{Cite web |last=Makinson |first=R.O. |title=Grevillea williamsoni |url=https://profiles.ala.org.au/opus/foa/profile/Grevillea%20williamsonii |access-date=18 June 2024 |website=Atlas of Living Australia}}</ref><ref name=":1">{{Cite web |date=6 June 2005 |title=Grevillea williamsonii (Williamson's Grevillea) |url=https://www.dcceew.gov.au/environment/biodiversity/threatened/assessments/grevillea-williamsonii-2005 |access-date=18 June 2024 |website=Australian Government Department of Climate Change, Energy, the Enviromment and Water}}</ref> |
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| ⚫ | ''Grevillea williamsoni'' is a spreading shrub that grows 0.6–1 m tall. Leaves are elliptic to narrow, 1.5–4.0 cm long, 3–8 mm wide, entire or (occasionally on adults, commonly on juveniles) with 2–4 spreading triangular teeth; margins shortly and angularly refracted; lower surface subsericeous to subvillous with straight hairs. The perianth is lime-green becoming yellowish; style pale orange yellow becoming pale pink at about anthesis then darker reddish pink. Flowering occurs August-October.<ref name=":0" /> |
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==Taxonomy== |
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''Grevillea williamsonii'' was first described in 1893. It is named after its discoverer, H.B. Williamson.<ref>{{Cite web |title=Grevillea williamsonii |url=https://anpsa.org.au/plant_profiles/grevillea-williamsonii/ |access-date=18 June 2024 |website=Australian Native Plants Society}}</ref> |
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Many sources, including the [[National Herbarium of Victoria]] and the [[Australian Plant Census]] treat ''G. williamsonii'' as synononymous with ''[[Grevillea aquifolium|G. aquifolium]]'', with recent studies suggesting it is a sterile variant.<ref name=":0" /><ref name=":1" /> |
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==Distribution and habitat== |
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The species is known only from a single area in the Grampians Ranges in western Victoria.<ref name=":0" /> |
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| ⚫ | ''Grevillea williamsoni'' is a spreading shrub that grows 0.6–1 m tall. Leaves are elliptic to narrow, 1.5–4.0 cm long, 3–8 mm wide, entire or (occasionally on adults, commonly on juveniles) with 2–4 spreading triangular teeth; margins shortly and angularly refracted; lower surface subsericeous to subvillous with straight hairs. The perianth is lime-green becoming yellowish; style pale orange yellow becoming pale pink at about anthesis then darker reddish pink. Flowering occurs August-October.<ref name=":0" /> |
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==References== |
==References== |
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[[Category:Proteales of Australia]] |
[[Category:Proteales of Australia]] |
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[[Category:Taxa named by Ferdinand von Mueller]] |
[[Category:Taxa named by Ferdinand von Mueller]] |
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{{proteaceae-stub}} |
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{{Australia-eudicot-stub}} |
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Revision as of 09:34, 18 June 2024
| Grevillea williamsonii | |
|---|---|
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Proteales |
| Family: | Proteaceae |
| Genus: | Grevillea |
| Species: | G. williamsonii
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| Binomial name | |
| Grevillea williamsonii F.Muell.
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Grevillea williamsonii, also known as Williamson's Grevillea, is a shrub which is endemic to a restricted area in the Grampians Ranges in western Victoria. It was first described from a single plant in 1893, which was destroyed by bushfire two years later. It was then feared extinct and went unrecorded for 98 years until 12 plants were found in 1995.[1][2]
Description
Grevillea williamsoni is a spreading shrub that grows 0.6–1 m tall. Leaves are elliptic to narrow, 1.5–4.0 cm long, 3–8 mm wide, entire or (occasionally on adults, commonly on juveniles) with 2–4 spreading triangular teeth; margins shortly and angularly refracted; lower surface subsericeous to subvillous with straight hairs. The perianth is lime-green becoming yellowish; style pale orange yellow becoming pale pink at about anthesis then darker reddish pink. Flowering occurs August-October.[1]
Taxonomy
Grevillea williamsonii was first described in 1893. It is named after its discoverer, H.B. Williamson.[3]
Many sources, including the National Herbarium of Victoria and the Australian Plant Census treat G. williamsonii as synononymous with G. aquifolium, with recent studies suggesting it is a sterile variant.[1][2]
Distribution and habitat
The species is known only from a single area in the Grampians Ranges in western Victoria.[1]
References
- ^ a b c d Makinson, R.O. "Grevillea williamsoni". Atlas of Living Australia. Retrieved 18 June 2024.
- ^ a b "Grevillea williamsonii (Williamson's Grevillea)". Australian Government Department of Climate Change, Energy, the Enviromment and Water. 6 June 2005. Retrieved 18 June 2024.
- ^ "Grevillea williamsonii". Australian Native Plants Society. Retrieved 18 June 2024.