Banksia nana

Last updated

Dwarf dryandra
Banksia nana.jpg
Status DECF P3.svg
Priority Three — Poorly Known 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. nana
Binomial name
Banksia nana
Synonyms [1]
  • Dryandra nanaMeisn.
  • Josephia nana (Meisn.) Kuntze

Banksia nana, commonly known as dwarf dryandra, [2] 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.

Contents

Description

Banksia nana is a shrub with short, hairy, underground stems and a small lignotuber. The leaves are pinnatipartite, 40–190 mm (1.6–7.5 in) long and 10–24 mm (0.39–0.94 in) wide on a petiole up to 10 mm (0.39 in) long. There are between ten and thirty-five sharply-pointed lobes on each side of the leaves. Between twelve and seventeen pale green or yellow flowers are arranged in a head on the ends of branches, with egg-shaped to lance-shaped involucral bracts up to 10 mm (0.39 in) long at the base of the head. The perianth is 33–34 mm (1.3–1.3 in) long and the pistil 68–79 mm (2.7–3.1 in) long and curved. Flowering occurs in October and the follicles are broadly egg-shaped, 13–14 mm (0.51–0.55 in) long. [2] [3]

Taxonomy and naming

This species was first formally described in 1855 by Carl Meissner who gave it the name Dryandra nana and published the description in Hooker's Journal of Botany and Kew Garden Miscellany from specimens collected by James Drummond. [4] [5] The specific epithet (nana) is a Latin word meaning "dwarf". [6] In 2007 Austin Mast and Kevin Thiele transferred all dryandras to the genus Banksia and renamed this species Banksia nana. [7] [8]

Distribution and habitat

Banksia nana grows in kwongan on low hills near Badgingarra in the Geraldton Sandplains and Swan Coastal Plain biogeographic regions. [2] [3]

Conservation status

This banksia is classified as "Priority Three" by the Government of Western Australia Department of Parks and Wildlife, [2] meaning that it is poorly known and known from only a few locations but is not under imminent threat. [9]

Related Research Articles

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 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 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 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.

<i>Banksia pteridifolia</i> Species of shrub in the family Proteaceae native to Western Australia

Banksia pteridifolia, commonly known as tangled honeypot, is a species of shrub that is endemic to the southwest of Western Australia. It has short, underground stems, deeply pinnatipartite leaves with sharply-pointed, linear lobes on the sides, creamy white or yellow flowers in heads of about one hundred and later up to five follicles in each head.

<i>Banksia bella</i> Species of shrub endemic to Western Australia

Banksia bella, commonly known as the Wongan dryandra, is a species of dense shrub that is endemic to a restricted area of Western Australia. It has narrow, deeply serrated leaves covered with white hairs on the lower surface, heads of yellow flowers and few follicles in the fruiting head.

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

Banksia purdieana is a species of bushy shrub that is endemic to Western Australia. It has broadly linear, pinnatipartite leaves with sharply-pointed lobes on the sides, yellow flowers in heads of about eighty and egg-shaped follicles.

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

Banksia sclerophylla is a species of shrub that is endemic to the south-west of Western Australia. It has spreading stems, linear, pinnatipid leaves with triangular lobes on the sides, yellow flowers in heads of between forty and seventy, and elliptical follicles.

<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.

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

Banksia shuttleworthiana, commonly known as bearded dryandra, is a species of low, spreading shrub that is endemic to Western Australia. It has thin, woolly-hairy stems, linear pinnatisect leaves, creamy brown to purplish flowers in heads of about forty and later, only a few egg-shaped follicles in each head.

<i>Banksia splendida</i> Species of shrub in the genus Banksia native to Western Australia

Banksia splendida, commonly known as shaggy dryandra, is a species of shrub that is endemic to the southwest of Western Australia. It has sharply-pointed linear leaves that are woolly on the lower surface, cream-coloured and maroon or yellow flowers in heads of between 65 and 115, and later up to eight egg-shaped follicles in each head.

<i>Banksia stenoprion</i> Species of shrub in the genus Banksia native to Western Australia

Banksia stenoprion is a species of prostrate shrub that is endemic to the south-west of Western Australia. It has short, underground stems, pinnatisect leaves with triangular lobes, golden, mauve or purple flowers in heads of up to ninety, 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.

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

Banksia tridentata, commonly known as yellow honeypot, is a low-growing shrub that is endemic to the southwest of Western Australia. It has narrow egg-shaped leaves with a sharp point on the tip, greenish yellow flowers in heads of between 85 and 125, and elliptical to egg-shaped follicles.

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

Banksia vestita, commonly known as summer dryandra, is a species of shrub that is endemic to the southwest of Western Australia. It has broadly linear, pinnatifid leaves with sharply pointed teeth on both sides, yellow flowers in heads of between thirty and forty, and broadly egg-shaped follicles.

References

  1. 1 2 "Banksia nana". Australian Plant Census. Retrieved 17 May 2020.
  2. 1 2 3 4 "Banksia nana". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  3. 1 2 George, Alex S. (1999). Flora of Australia (PDF). Vol. 17B. Canberra: Australian Biological Resources Study, Canberra. p. 349. Retrieved 17 May 2020.
  4. ↑ "Dryandra nana". APNI. Retrieved 17 May 2020.
  5. ↑ Meissner, Carl; Hooker, William J. (1855). "New Proteaceae of Australia". Hooker's Journal of Botany and Kew Garden Miscellany. 7: 121. Retrieved 17 May 2020.
  6. ↑ Francis Aubie Sharr (2019). Western Australian Plant Names and their Meanings. Kardinya, Western Australia: Four Gables Press. p. 259. 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 nana". APNI. Retrieved 28 May 2020.
  9. ↑ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 17 May 2020.
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