Banksia arctotidis | |
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Near Ravensthorpe | |
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. arctotidis |
Binomial name | |
Banksia arctotidis | |
Synonyms [1] | |
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Banksia arctotidis is a species of prostrate shrub that is endemic to the southwest of Western Australia. It has leaves that are pinnately divided to the midrib, cream-coloured flowers and hairy, egg-shaped fruit.
Banksia arctotidis is a prostrate shrub that typically grows to a height of 0.5–1 m (1 ft 8 in – 3 ft 3 in), width of 0.7 m (2 ft 4 in) and has a short underground stem. The leaves are linear, 80–150 mm (3.1–5.9 in) long and 5–8 mm (0.20–0.31 in) wide, pinnately divided to the midrib with between 25 and 45 sharply pointed lobes on each side. The flower spikes are surrounded by hairy thread-like, egg-shaped and oblong bracts and are composed of between 75 and 100 individual flowers. The perianth is 26–31 mm (1.0–1.2 in) long and yellow cream-coloured or yellowish brown. Flowering occurs between September and October and the fruit is a partly hairy, egg-shaped follicle 10–14 mm (0.39–0.55 in) long. [2] [3]
This banksia was first formally described in 1830 by Robert Brown who gave it the name Dryandra arctotidis and published the description in Supplementum primum Prodromi florae Novae Hollandiae . [4] [5] In 2007, Austin Mast and Kevin Thiele changed the name to Banksia arctotidis. [6] The specific epithet (arctotidis) is a reference to the genus Arctotis . [7]
Banksia arctotidis grows on sandy soil in kwongan south from Kojonup and Ongerup through the Stirling Range National Park to near Albany.
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. [8]
This banksia is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife. [2]
Banksia subg. Isostylis is a subgenus of Banksia. It contains three closely related species, all of which occur only in Southwest Western Australia. Members of subgenus Isostylis have dome-shaped flower heads that are superficially similar to those of B. ser. Dryandra, but structurally more like reduced versions of the "flower spikes" characteristic of most other Banksia taxa.
Banksia goodii, commonly known as Good's banksia, is a species of prostrate shrub that is endemic to a small area in the south-west of Western Australia. It has densely hairy stems, wavy, oblong to egg-shaped leaves with irregularly serrated margins, rusty-brown flowers and hairy fruit. It grows in low forest and woodland near Albany and is listed as "endangered".
Banksia biterax is a species of dense shrub that is endemic to Western Australia. It has hairy stems, deeply serrated leaves and spikes of up to 200 pale to dark brown flowers.
Banksia bipinnatifida is a species of shrub that is endemic to Western Australia. It is a prostrate shrub with a lignotuber, an underground stem, only a few divided leaves, large cream-coloured to pale yellow flowers and large fruit.
Banksia calophylla is a species of shrub that is endemic to Western Australia. It has a fire-tolerant, underground stem, pinnatifid leaves that have woolly hairs on the lower surface and heads of thirty to forty-five yellowish brown flowers surrounded by hairy bracts.
Banksia concinna is a species of shrub that is endemic to Western Australia. It has elliptical leaves with between five and twenty triangular teeth on each side, hairy heads of yellow flowers and hairy, egg-shaped fruit.
Banksia foliolata is a species of shrub that is endemic to Western Australia. It has hairy stems, pinnatifid leaves, heads of about sixty cream-coloured and maroon flowers and oblong to elliptical follicles. It grows on rocky slopes in dense shrubland in the Stirling Range National Park.
Banksia fraseri is a species of shrub that is endemic to Western Australia. It has hairy stems, broadly linear pinnatisect leaves with between four and eighteen sharply-pointed lobes on each side, between eighty and one hundred pink to cream-coloured flowers and wedge-shaped follicles.
Banksia seneciifolia is a species of column-shaped shrub that is endemic to the south-west of Western Australia. It has linear, pinnatifid leaves, yellow flowers in heads of about twenty-five, and narrow egg-shaped follicles.
Banksia serra, commonly known as serrate-leaved dryandra, is a species of shrub that is endemic to Western Australia. It has broadly linear, serrated leaves, pale yellow flowers in heads of about thirty and egg-shaped follicles.
Banksia squarrosa, commonly known as pingle, is a species of prickly shrub that is endemic to Western Australia. It has linear to narrow lance-shaped leaves with up to ten sharply-pointed teeth on each side, yellow flowers in heads of about sixty and later, up to seven oblong to egg-shaped follicles in each head.
Robert Brown's taxonomic arrangement of Banksia was published in his book of 1810, Prodromus Florae Novae Hollandiae et Insulae Van Diemen, and expanded in the supplement to that publication, Supplementum Primum Prodromi Florae Novae Hollandiae, in 1830. It was the first survey of Banksia species to be published, and included descriptions of a number of previously undescribed species.
Isopogon dubius, commonly known as pincushion coneflower, is a species of plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a shrub with sharply-pointed, deeply lobed or pinnate leaves and more or less spherical heads of pink to reddish pink flowers.
Dryandra subg. Hemiclidia is an obsolete plant taxon that encompassed material that is now included in Banksia. Published at genus rank as Hemiclidia by Robert Brown in 1830, it was set aside by George Bentham in 1870, but reinstated at subgenus rank by Alex George in 1996. In 2007, all Dryandra species were transferred into Banksia at series rank, and the infrageneric Dryandra taxa, including D. subg. Hemiclidia, were set aside.
Isopogon asper is a species of plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a low shrub with crowded pinnate leaves and flattened spherical heads of glabrous pink flowers.
Persoonia daphnoides is a plant in the family Proteaceae and is endemic to a restricted area in eastern Australia. It is a prostrate shrub with spatula-shaped to egg-shaped leaves with the narrower end towards the base, and yellow flowers in groups of up to eight on a rachis up to 35 mm (1.4 in) long.
Isopogon divergens, commonly known as spreading coneflower, is a species of plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a shrub with pinnate leaves and more or less spherical heads of glabrous pink flowers followed by an oval to cylindrical fruiting cone.
Grevillea depauperata is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a low, dense, spreading shrub with oblong or egg-shaped leaves and clusters of red to orange flowers.
Petrophile crispata is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with pinnately-divided leaves with sharply-pointed tips, and oval heads of glabrous, yellow flowers.
Petrophile striata is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with pinnate or bipinnate, striated, sharply-pointed leaves, and oval heads of silky-hairy yellow, creamy-yellow or cream-coloured flowers.