Grevillea dimorpha, commonly known as flame grevillea or olive grevillea,[2] is a species of flowering plant in the family Proteaceae and is endemic to the Grampians National Park in Victoria, Australia. It is an erect to spreading shrub with elliptic to linear or egg-shaped leaves with the narrower end towards the base, and groups of bright red flowers.

Flame grevillea
In Maranoa Gardens
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Grevillea
Species:
G. dimorpha
Binomial name
Grevillea dimorpha
Synonyms[1]
  • Grevillea dimorpha var. augustifolia F.Muell.
  • Grevillea dimorpha F.Muell. var. dimorpha
  • Grevillea dimorpha var. lanceolata Meisn. nom. illeg.
  • Grevillea dimorpha var. latifolia F.Muell.
  • Grevillea dimorpha var. linearis F.Muell. MS
  • Grevillea dimorpha var. linearis Meisn. MS
  • Grevillea oleoides subsp. dimorpha (F.Muell.) Benth.
  • Grevillea speciosa subsp. dimorpha (F.Muell.) McGill.

Description

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Grevillea dimorpha is an erect to spreading shrub that typically grows to a height of 0.4–3 m (1 ft 4 in – 9 ft 10 in). Its leaves are elliptic to linear or egg-shaped with the narrower end towards the base, 50–150 mm (2.0–5.9 in) long and 1.5–20 mm (0.059–0.787 in) wide, the edges turned down or rolled under and the lower surface silky-hairy. The flowers are usually arranged in leaf axils, in down-turned groups of two to sixteen flowers and are bright red, the pistil 21–26 mm (0.83–1.02 in) long. Flowering mainly occurs from August to December and the fruit is an elliptic follicle 12–16 mm (0.47–0.63 in) long, with a bumpy surface.[2][3]

Taxonomy

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Grevillea dimorpha was first formally described in 1855 by Ferdinand von Mueller in Transactions of the Philosophical Society of Victoria from specimens collected in the Grampians.[4] The specific epithet (dimorpha) means "having two forms".[5]

Distribution and habitat

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Flame grevillea grows in heathy woodland and forest on sandy soil in the Grampians National Park in Victoria.[2][3]

Conservation status

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The species is listed as "endangered" under the Flora and Fauna Guarantee Act 1988[6] and as "rare" in Victoria, on the Department of Sustainability and Environment's Advisory list of rare or threatened plants in Victoria.[7]

References

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  1. ^ a b "Grevillea dimorpha". Australian Plant Census. Retrieved 26 March 2022.
  2. ^ a b c "Grevillea dimorpha". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 26 March 2022.
  3. ^ a b Makinson, Robert O. "Grevillea dimorpha". Royal Botanic Gardens Victoria. Retrieved 26 March 2022.
  4. ^ "Grevillea dimorpha". APNI. Retrieved 26 March 2022.
  5. ^ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 184. ISBN 9780958034180.
  6. ^ "Grevillea dimorpha". Royal Botanic Gardens Victoria. Retrieved 30 December 2023.
  7. ^ "Flora and Fauna Guarantee Act 1988 Threatened List June 2024" (PDF). The State of Victoria Department of Energy, Environment and Climate Action. Retrieved 25 November 2024.