Banksia obtusa

Banksia obtusa, commonly known as shining honeypot,[2] is a species of shrub that is endemic to the south-west of Western Australia. It has underground stems, linear pinnatifid leaves with triangular lobes on each side, cream-coloured to yellow flowers in heads of up to seventy, surrounded by dark reddish bracts and egg-shaped follicles.

Shining honeypot
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Banksia
Subgenus: Banksia subg. Banksia
Series: Banksia ser. Dryandra
Species:
B. obtusa
Binomial name
Banksia obtusa
Synonyms[1]

Description

Banksia obtusa is a shrub with triangular, underground stems but does not form a lignotuber. The leaves appear in tufts up to 60 cm (24 in) in diameter and are linear in shape and pinnatifid, 150–300 mm (5.9–11.8 in) long and 6–17 mm (0.24–0.67 in) wide on a petiole 20–40 mm (0.79–1.57 in) long. There are between thirty and sixty triangular lobes on each side of the leaves. Between fifty-five and seventy cream-coloured or yellow flowers are borne in a head with oblong to egg-shaped, dark reddish-brown involucral bracts up to 45 mm (1.8 in) long at the base of the head. The perianth is 26–30 mm (1.0–1.2 in) long and the pistil 35–38 mm (1.4–1.5 in) long. Flowering occurs from August to November, and the follicles are egg-shaped and about 18 mm (0.71 in) long.[2][3]

Taxonomy and naming

This species was first formally described in 1810 by Robert Brown who gave it the name Dryandra obtusa and published the description in Transactions of the Linnean Society of London.[4][5] The specific epithet (obtusa) is from a Latin word meaning "blunt", referring either to the leaves or the leaf lobes.[6]

In 2007 Austin Mast and Kevin Thiele transferred all dryandras to the genus Banksia and renamed this species Banksia obtusa.[7][8]

Distribution and habitat

Shining honeypot grows in kwongan and mallee shrubland in near-coastal areas between the Fitzgerald River National Park and the Cape Arid National Park.[2][3]

Conservation status

This banksia is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.[2]

References
  1. "Banksia obtusa". Australian Plant Census. Retrieved 19 May 2020.
  2. "Banksia obtusa". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  3. George, Alex S. (1999). Flora of Australia (PDF). Vol. 17B. Canberra: Australian Biological Resources Study, Canberra. pp. 301–302. Retrieved 19 May 2020.
  4. "Dryandra obtusa". APNI. Retrieved 19 May 2020.
  5. Brown, Robert (1810). "On the Proteaceae of Jussieu". Transactions of the Linnean Society of London. 10 (1): 214. Retrieved 19 May 2020.
  6. Francis Aubie Sharr (2019). Western Australian Plant Names and their Meanings. Kardinya, Western Australia: Four Gables Press. p. 263. ISBN 9780958034180.
  7. Mast, Austin R.; Thiele, Kevin (2007). "The transfer of Dryandra R.Br. to Banksia L.f. (Proteaceae)". Australian Systematic Botany. 20 (1): 63–71. doi:10.1071/SB06016.
  8. "Banksia obtusa". APNI. Retrieved 19 May 2020.
  • Cavanagh, Tony and Margaret Pieroni (2006). The Dryandras. Melbourne: Australian Plants Society (SGAP Victoria); Perth: Wildflower Society of Western Australia. ISBN 1-876473-54-1.
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