Banksia mucronulata

Banksia mucronulata, commonly known as swordfish dryandra,[2] is a species of shrub that is endemic to Western Australia. It has spreading, hairy stems, linear, deeply pinnatifid leaves with sharply-pointed lobes, pale yellow to cream-coloured flowers in heads of between 80 and 180, and egg-shaped follicles.

Swordfish dryandra
Scientific 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. mucronulata
Binomial name
Banksia mucronulata
Synonyms[1]
  • Banksia mucronulata (R.Br.) A.R.Mast & K.R.Thiele subsp. mucronulata
  • Banksia mucronulata subsp. retrorsa (A.S.George) A.R.Mast & K.R.Thiele
  • Dryandra mucronulata R.Br.
  • Josephia mucronulata (R.Br.) Kuntze isonym

Description

Banksia mucronulata is a shrub that typically grows to a height of 0.5–2.5 m (1 ft 8 in–8 ft 2 in) but does not form a lignotuber. It has hairy, spreading stems and linear, deeply pinnatifid leaves that are 150–250 mm (5.9–9.8 in) long and 4–12 mm (0.16–0.47 in) wide with short, woolly hairs on the lower surface. There are between forty and sixty sharply-pointed lobes on each side. The flowers are pale yellow or cream-coloured and arranged in head of between 80 and 180 short side branch and surrounded by tangled, woolly hairs. There are hairy oblong involucral bracts 20–25 mm (0.79–0.98 in) long at the base of the head. The perianth is 18–30 mm (0.71–1.18 in) long and the pistil 23–30 mm (0.91–1.18 in) long and curved. Flowering occurs from May to July and the follicles are egg-shaped, 14–20 mm (0.55–0.79 in) long and hairy.[2][3][4]

Taxonomy and naming

This species was first formally described in 1810 by Robert Brown who gave it the name Dryandra mucronulata and published the description in Transactions of the Linnean Society of London.[5][6] The specific epithet (mucronulata) is a latinization of mucronulate, referring to the small point on the tip of the leaf lobes.[7]

In 2007 Austin Mast and Kevin Thiele transferred all dryandras to the genus Banksia and renamed this species Banksia mucronulata.[8][9]

Distribution and habitat

Banksia mucronulata grows in kwongan, shrubland and wandoo woodland between Cranbrook amd Cheyne Beach, including in the Stirling Range.[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 mucronulata". Australian Plant Census. Retrieved 16 May 2020.
  2. "Banksia mucronulata". FloraBase. Western Australian Government Department of Parks and Wildlife.
  3. George, Alex S. (1999). Flora of Australia (PDF). 17B. Canberra: Australian Biological Resources Study, Canberra. pp. 297–298. Retrieved 16 May 2020.
  4. George, Alex (1996). "New taxa and a new infrageneric classification in Dryandra R.Br. (Proteaceae : Grevilleoideae)". Nuytsia. 10 (3): 356–357. Retrieved 15 May 2020.
  5. "Dryandra mucronulata". APNI. Retrieved 16 May 2020.
  6. Brown, Robert (1810). "On the Proteaceae of Jussieu". Transactions of the Linnean Society of London. [The Society], 1791-1875. 10 (1): 213. Retrieved 16 May 2020.
  7. Francis Aubie Sharr (2019). Western Australian Plant Names and their Meanings. Kardinya, Western Australia: Four Gables Press. p. 256. ISBN 9780958034180.
  8. 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.
  9. "Banksia mucronulata". APNI. Retrieved 16 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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