Banksia porrecta

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Banksia porrecta
Status DECF P4.svg
Priority Four — Rare Taxa (DEC)
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Banksia
Subgenus: Banksia subg. Banksia
Series: Banksia ser. Dryandra
Species:
B. porrecta
Binomial name
Banksia porrecta

Banksia porrecta is a species of prostrate shrub that is endemic to the south-west of Western Australia. It has hairy, underground stems, pinnatipartite leaves with up to forty narrow triangular lobes on each side, yellow flowers in heads of between twenty and thirty, and one or two egg-shaped follicles in each head.

Contents

Description

Banksia porrecta is a prostrate shrub with hairy underground stems. The leaves are pinnatipartite, 150–300 mm (5.9–11.8 in) long and 20–30 mm (0.79–1.18 in) wide on a petiole 20–35 mm (0.79–1.38 in) long. The petiole is hairy and there are between thirty and forty narrow triangular lobes up to 16 mm (0.63 in) long on each side of the leaves. Between twenty and thirty yellow flowers are borne in heads with egg-shaped to oblong involucral bracts up to 25 mm (0.98 in) long at the base of each head. The perianth is 37–40 mm (1.5–1.6 in) long and the pistil 37–40 mm (1.5–1.6 in) long. Flowering occurs from July to August, and one or two egg-shaped follicles 11–15 mm (0.43–0.59 in) long form in each head. [1] [2] [3]

Taxonomy and naming

This species was first formally described in 1996 by Alex George who gave it the name Dryandra porrecta and published the description in the journal Nuytsia from specimens he collected near Woodanilling in 1986. [3] [4] The specific epithet (porrecta) is from the Latin porrectus, in turn from porrigo meaning "to spread out" or "to extend", referring to the prostrate habit. [3]

In 2007, Austin Mast and Kevin Thiele transferred all the dryandras to the genus Banksia and this species became Banksia porrecta. [5] [6]

Distribution and habitat

Banksia porrecta grows in low kwongan, often with sedges and mallee eucalypts, in scattered locations between Woodanilling and Tenterden. [2]

Ecology

An assessment of the potential impact of climate change on this species found that its range is likely to contract by between 50% and 80% by 2080, depending on the severity of the change. [7]

Conservation status

Banksia porrecta is classified as "Priority Four" by the Government of Western Australia Department of Parks and Wildlife, [1] meaning that is rare or near threatened. [8]

Related Research Articles

<i>Banksia pellaeifolia</i> Species of shrub in the family Proteaceae endemic to the south-west of Western Australia

Banksia pellaeifolia is a species of shrub that is endemic to the south-west of Western Australia. It has underground stems, deeply pinnatipartite leaves with twenty to thirty lobes on each side, yellowish-brown flowers in heads of about sixty-five, and egg-shaped follicles.

Banksia cypholoba is a species of dwarf, prostrate shrub that is endemic to Western Australia. It has pinnatipartite leaves with twenty-five to forty triangular lobes on each side, heads of about sixty brownish and yellow flowers and mostly glabrous follicles.

<i>Banksia rufa</i> Species of prostrate shrub

Banksia rufa is a species of prostrate shrub that is endemic to the south-west of Western Australia. It has broadly linear, pinnatifid or pinnatipartite leaves with between five and twenty lobes on each side, yellow, orange or brownish flowers in heads of forty or more, and glabrous, egg-shaped follicles.

Banksia fililoba is a species of shrub that is endemic to Western Australia. It has pinnatipartite leaves with sharply pointed lobes, heads of up to eighty yellowish flowers and egg-shaped fruit. It mainly grows in kwongan in the south-west of the state.

<i>Banksia formosa</i> Species of shrub in the family Proteaceae endemic to the south-west of Western Australia

Banksia formosa, commonly known as showy dryandra, is a species of shrub that is endemic to the south-west of Western Australia. It has pinnatipartite leaves with up to forty triangular lobes on each side, up to more than two hundred, conspicuous golden orange flowers and up to sixteen egg-shaped follicles in each head.

Banksia idiogenes is a species of tufted shrub that is endemic to Western Australia. It has hairy stems, deeply pinnatifid leaves, distinctive, scented, red and white flowers in heads of about eighty, later several glabrous, egg-shaped follicles in each head.

Banksia ionthocarpa is a species of shrub that is endemic to Western Australia. It has short, hairy, prostrate stems, pinnatifid leaves, pinkish purple to orange flower in heads of between forty and sixty at the base of leaves, and egg-shaped follicles with a distinctive tuft of hairs on the end.

Banksia lepidorhiza is a species of prostrate shrub that is endemic to Western Australia. It has underground stems, linear pinnatipartite leaves with sharply pointed lobes, pink, cream-coloured and yellow flowers in head of about thirty and egg-shaped follicles. It is only known from near Woodanilling.

<i>Banksia dallanneyi</i> Species of shrub in the family Proteaceae endemic to Western Australia

Banksia dallanneyi, commonly known as couch honeypot, is a species of prostrate shrub that is endemic to Western Australia. It only has a short above-ground stem, pinnatipartite or pinnatisect leaves, between thirty and seventy variously coloured flowers and glabrous, egg-shaped fruit.

Banksia meganotia is a species of prickly shrub that is endemic to Western Australia. It has linear, pinnatiparite leaves with sharply-pointed lobes, yellow flowers in heads of about forty and relatively small follicles.

<i>Banksia mimica</i> Species of shrub in Western Australia

Banksia mimica, commonly known as summer honeypot, is a species of prostrate shrub that is endemic to Western Australia. It has wedge-shaped leaves with sharply-pointed teeth on the sides, yellow flowers in heads of up to fifty and oblong, hairy follicles.

<i>Banksia nana</i> Species of shrub in Western Australia

Banksia nana, commonly known as dwarf dryandra, is a species of shrub that is endemic to a small area in the south-west of Western Australia. It has underground stems, pinnatipartite leaves with sharply-pointed lobes, pale green or yellow flowers and broadly egg-shaped follicles.

<i>Banksia octotriginta</i> Species of shrub in the family Proteaceae endemic to the south-west of Western Australia

Banksia octotriginta is a species of shrub that is endemic to the south-west of Western Australia. It has erect stems with bluish-green, deeply pinnatipartite leaves, heads of up to eighty or more golden-yellow flowers and egg-shaped follicles.

Banksia platycarpa is a species of small shrub that is endemic to the south-west of Western Australia. It has broadly linear pinnatipartite leaves, with up to twenty-five sharply pointed lobes on each side, creamy-yellow to orange flowers in heads of up to seventy-five, and egg-shaped follicles.

Banksia plumosa is a species of shrub that is endemic to Western Australia. It has hairy stems, broadly linear pinnatifid to pinnatipartite leaves with triangular lobes, creamy-yellow flowers in heads of up to eighty, and egg-shaped follicles.

Banksia pseudoplumosa, commonly known as false plumed-banksia, is a species of shrub that is endemic to Western Australia. It has hairy stems, broadly linear, pinnatipartite leaves with sharply-pointed triangular lobes on the sides, yellow flowers in heads of about one hundred, and densely woolly-hairy follicles.

Banksia rufistylis is a species of column-shaped shrub that is endemic to Western Australia. It has linear leaves with sharply-pointed serrations, cream-coloured flowers with a red style arranged in heads of about forty, and egg-shaped follicles with a flattened tip.

<i>Banksia serratuloides</i> Species of shrub in the family Proteaceae endemic to Western Australia

Banksia serratuloides is a species of small shrub that is endemic to Western Australia. It has linear, pinnatipartite leaves, yellow and pink flowers in heads of about forty and hairy, wrinkled follicles.

Banksia shanklandiorum is a species of dense shrub that is endemic to Western Australia. It has hairy stems, pinnatipartite to pinnatisect leaves with sharply-pointed lobes, pink to gold-coloured flowers in heads of about 100, and egg-shaped follicles.

Banksia tortifolia is a small, spreading, prostrate shrub that is endemic to the southwest of Western Australia. It has short underground stems, pinnatipartite leaves with sharply-pointed, linear lobes on each side, greenish-cream, yellow and pink flowers in heads of about eighty, and glabrous, egg-shaped follicles.

References

  1. 1 2 "Banksia porrecta". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  2. 1 2 George, Alex S. (1999). Flora of Australia (PDF). Vol. 17B. Canberra: Australian Biological Resources Study, Canberra. pp. 314–315. Retrieved 24 May 2020.
  3. 1 2 3 George, Alex (1996). "New taxa and a new infrageneric classification in Dryandra R.Br. (Proteaceae : Grevilleoideae)". Nuytsia. 10 (3): 373. Retrieved 24 May 2020.
  4. ↑ "Dryandra porrecta". APNI. Retrieved 24 May 2020.
  5. ↑ "Banksia porrecta". APNI. Retrieved 24 May 2020.
  6. ↑ Mast, Austin R.; Thiele, Kevin (2013). "The transfer of Dryandra R.Br. to Banksia L.f. (Proteaceae)". Australian Systematic Botany. 20 (1): 63–71. doi:10.1071/SB06016.
  7. ↑ Fitzpatrick, Matthew C.; Gove, Aaron D.; Sanders, Nathan J.; Dunn, Robert R. (2008). "Climate change, plant migration, and range collapse in a global biodiversity hotspot: the Banksia (Proteaceae) of Western Australia". Global Change Biology. 14 (6): 1–16. doi:10.1111/j.1365-2486.2008.01559.x.
  8. ↑ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 24 May 2020.
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