Grevillea didymobotrya

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Grevillea didymobotrya
Grevillea didymobotrya.jpg
In Maranoa Gardens
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Grevillea
Species:
G. didymobotrya
Binomial name
Grevillea didymobotrya

Grevillea didymobotrya is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is an erect shrub with simple leaves, the size and shape depending on subspecies, and cylindrical groups of yellow or cream-coloured flowers.

Contents

Description

Grevillea didymobotrya is an erect shrub that typically grows to a height of 0.3–5 m (1 ft 0 in – 16 ft 5 in). It has simple leaves, either linear, more or less cylindrical, 25–170 mm (0.98–6.69 in) long and 0.5–1.3 mm (0.020–0.051 in) wide, or mostly narrowly elliptic, 10–70 mm (0.39–2.76 in) long and 3–7 mm (0.12–0.28 in) wide, depending on subspecies. The flowers are arranged in cylindrical racemes 35–60 mm (1.4–2.4 in) long and are yellow, the pistil 3–6 mm (0.12–0.24 in) long and glabrous. Flowering occurs from May to October and the fruit is an elliptic to oval follicle 11–16 mm (0.43–0.63 in) long. [3] [4]

Taxonomy

Grevillea didymobotrya by Carl Meissner in Prodromus Systematis Naturalis Regni Vegetabilis in 1856, from material collected by James Drummond in the Swan River Colony. [5] [6] The specific epithet (didymobotrya) is derived from Ancient Greek words meaning "paired" and "bunch of grapes", referring to the racemes. [7]

In 1986, Donald McGillivray described two subspecies in his book, New Names in Grevillea (Proteaceae) and the names are accepted by the Australian Plant Census:

Distribution and habitat

This species of grevillea grows in heath, shrubland or mallee on sandplains and is widespread from near Shark Bay to Cundeelee Balladonia and Ravensthorpe. Subspecies involuta has a more restricted distribution between Geraldton and Mullewa. [3] [4] [9] [10] [12] [13]

Conservation status

Grevillea didymobotrya is listed as Least Concern on the IUCN Red List of Threatened Species. [1] Both subspecies of G. didymobotrya are listed as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions. [4] [10] [13]

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References

  1. 1 2 Olde, P.; Keighery, G. (2020). "Grevillea didymobotrya". IUCN Red List of Threatened Species . 2020: e.T112651992A113307876. doi: 10.2305/IUCN.UK.2020-2.RLTS.T112651992A113307876.en . Retrieved 30 December 2023.
  2. "Grevillea didymobotrya". Australian Plant Census. Retrieved 23 March 2022.
  3. 1 2 "Grevillea didymobotrya". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 23 March 2022.
  4. 1 2 3 "Grevillea didymobotrya". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  5. "Grevillea didymobotrya". APNI. Retrieved 23 March 2022.
  6. Meissner, Carl (1856). Prodromus systematis naturalis regni vegetabilis. Paris: Victoris Masson. p. 386. Retrieved 23 March 2022.
  7. Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 183. ISBN   9780958034180.
  8. "Grevillea didymobotrya subsp. didymobotrya". Australian Plant Census. Retrieved 23 March 2022.
  9. 1 2 "Grevillea didymobotrya subsp. didymobotrya". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 23 March 2022.
  10. 1 2 3 "Grevillea didymobotrya subsp. didymobotrya". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  11. "Grevillea didymobotrya subsp. involuta". Australian Plant Census. Retrieved 23 March 2022.
  12. 1 2 "Grevillea didymobotrya subsp. involuta". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 23 March 2022.
  13. 1 2 3 "Grevillea didymobotrya subsp. involuta". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.