Grevillea parallela
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Grevillea
Species:
G. parallela
Binomial name
Grevillea parallela
Synonyms[1]
  • Grevillea angustata R.Br.
  • Grevillea ceratophylla R.Br.
  • Grevillea heteroneura W.Fitzg.
  • Grevillea muelleriana H.Buek
  • Grevillea polybotrya F.Muell. nom. illeg.
  • Grevillea polystachya R.Br.
  • Grevillea polystachya var. hebestachya Benth.
  • Grevillea polystachya R.Br. var. polystachya
  • Grevillea refracta var. ceratophylla (R.Br.) Benth.
  • Grevillia parallela Knight orth. var.
Habit near Mareeba

Grevillea parallela, also known as silver oak, beefwood[2] or white grevillea,[3] is a species of flowering plant in the family Proteaceae and is endemic to northern Australia. It is a single-stemmed shrub or small tree with pinnatisect or pinnatipartite leaves, the lobes linear to strap-like, and cylindrical clusters of white to cream-coloured or pale yellowish-green flowers.

Description

Grevillea parallela is a single-stemmed shrub or tree that typically grows to a height of 2.5–15 m (8 ft 2 in – 49 ft 3 in) and has dark, hard, furrowed bark and pendulous foliage. Its leaves are pinnatisect or pinnatipartite, 100–400 mm (3.9–15.7 in) long, with 3 to 10 erect, linear to strap-like lobes 20–200 mm (0.79–7.87 in) long, 0.9–10 mm (0.035–0.394 in) wide and pale green-silvery grey. The flowers are usually arranged on the ends of branches in cylindrical clusters 60–100 mm (2.4–3.9 in) long, and are white to cream-coloured or pale yellowish-green, the pistil 13–26 mm (0.51–1.02 in) long. Flowering mainly occurs from June to October, and the fruit is an elliptic to lens-shaped follicle 14–29 mm (0.55–1.14 in) long.[2][4][5]

Taxonomy

Grevillea parallela was first formally described in 1809 by Joseph Knight in On the cultivation of the plants belonging to the natural order of Proteeae, from specimens collected by Sir Joseph Banks near the Endeavour River.[6][7] The specific epithet (parallela) means "parallel" and refers to the leaf veins.[8]

Distribution and habitat

Silver oak is found in northern Australia, in the Kimberley region of Western Australia,[5] the top end of the Northern Territory[9] and northern and central areas of Queensland.[2] It grows in a variety of soils types derived from laterite, sandstone or granite. It is usually part of an open forest or woodland ecosystem with a grassy understorey. Associated species include bloodwoods (Corymbia polycarpa, C. tessellaris and C. nesophila), other eucalypts including (Eucalyptus tetrodonta, E. miniata and E. platyphylla) and Melaleuca viridiflora and Planchonia careya.[2]

See also

References

  1. 1 2 "Grevillea parallela". Australian Plant Census. Retrieved 7 August 2022.
  2. 1 2 3 4 Ian Brooker; Douglas J. Boland; Maurice William McDonald; G. M. Chippendale (2006). Forest Trees of Australia. CSIRO publishing. ISBN 9780643069695.
  3. ↑ "Grevillea parallela". Australian Native Plants Society (Australia). Retrieved 7 August 2022.
  4. ↑ "Grevillea parallela". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 21 July 2022.
  5. 1 2 "Grevillea parallela". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  6. ↑ "Grevillea parallela". APNI. Retrieved 7 August 2022.
  7. ↑ Knight, Joseph (1809). On the cultivation of the plants belonging to the natural order of Proteeae. W. Savage, Printer. p. 121. Retrieved 7 August 2022.
  8. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 271. ISBN 9780958034180.
  9. ↑ "Grevillea parallela". Northern Territory Government. Retrieved 7 August 2022.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.