Grevillea wickhamii explained

Grevillea wickhamii, commonly known as Wickham's grevillea, holly-leaf grevillea or lgarrmari in Djaru,[1] is species of flowering plant in the family Proteaceae and is endemic to northern Australia. It is an erect shrub or spindly tree with holly-like, broadly egg-shaped leaves with 2 to 7 shallow teeth, and down-curved clusters of flowers, the colour depending on subspecies.

Description

Grevillea wickhamii is an erect shrub or spindly tree, that typically grows to a height of and has smooth bark. Its leaves are holly-like, broadly egg-shaped in outline, long and wide, with 2 to 7 shallow, pointed teeth near the tip of the leaves. The flowers are arranged in leaf axils or on the stems in down-curved, sometimes branched clusters, the end groups on a rachis mostly long, each flower on a pedicel usually long. Flower colour and flowering period vary with subspecies, and the pistil is long. The fruit is an oblong, glabrous follicle long.[2] [3]

Taxonomy

Grevillea wickhamii in 1856 by Carl Meissner in de Candolle's Prodromus Systematis Naturalis Regni Vegetabilis from specimens collected by John Clements Wickham of plants he collected in northern Australia during the Second voyage of HMS Beagle.[4] [5] The specific epithet (wickhamii) honours the collector of the type specimens.[6]

The names of 6 subspecies of G. wickhamii are accepted by the Australian Plant Census:

Distribution and habitat

Wickham's grevillea is widespread in northern Western Australia, in inland regions of the Northern Territory and in western Queensland.

Conservation status

All 6 subspecies of G. wickhamii are listed as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions.

Notes and References

  1. Web site: Grevillea wickhamii . Northern Territory Government . 18 April 2023.
  2. Web site: Grevillea wickhamii . Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra . 19 April 2023.
  3. Book: Wrigley . John W. . Fagg . Murray A. . Banksias, waratahs & grevilleas : and all other plants in the Australian Proteaceae family . 1991 . Angus & Robertson . North Ryde, NSW, Australia . 0207172773 . 349.
  4. Web site: Grevillea wickhamii. APNI. 19 April 2023.
  5. Book: Meissner . Carl . de Candolle . Augustin P. . Prodromus Systematis Naturalis Regni Vegetabilis . 1857 . Paris . 380 . 18 April 2023.
  6. Book: Sharr . Francis Aubi . George . Alex . Western Australian Plant Names and Their Meanings . 2019 . Four Gables Press . Kardinya, WA . 9780958034180 . 339 . 3rd.
  7. Web site: Grevillea wickhamii subsp. aprica . Australian Plant Census . 19 April 2023.
  8. Web site: Grevillea wickhamii subsp. aprica . Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra . 19 April 2023.
  9. Web site: Grevillea wickhamii subsp. aprica . Northern Territory Government . 19 April 2023.
  10. Web site: Grevillea wickhamii subsp. cratista . Australian Plant Census . 19 April 2023.
  11. Web site: Grevillea wickhamii subsp. cratista . Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra . 19 April 2023.
  12. Web site: Grevillea wickhamii subsp. hispidula . Australian Plant Census . 19 April 2023.
  13. Web site: Grevillea wickhamii subsp. hispidula . Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra . 19 April 2023.
  14. Web site: Grevillea wickhamii subsp. macrodonta . Australian Plant Census . 19 April 2023.
  15. Web site: Grevillea wickhamii subsp. macrodonta . Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra . 19 April 2023.
  16. Web site: Grevillea wickhamii subsp. pallida . Australian Plant Census . 19 April 2023.
  17. Web site: Grevillea wickhamii subsp. pallida . Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra . 19 April 2023.
  18. Web site: Grevillea wickhamii subsp. wickhamii . Australian Plant Census . 19 April 2023.
  19. Web site: Grevillea wickhamii subsp. wickhamii . Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra . 19 April 2023.