Creeping Banksia | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Order: | Proteales |
Family: | Proteaceae |
Genus: | Banksia |
Subgenus: | Banksia subg. Banksia |
Section: | Banksia sect. Banksia |
Series: | Banksia ser. Prostratae |
Species: | B. repens |
Binomial name | |
Banksia repens | |
Banksia repens, the creeping banksia, is a species of shrub in the plant genus Banksia . It occurs on the south coast of Western Australia from D'Entrecasteaux National Park in the west to Mount Ragged in the east.
Seeds do not require any treatment, and take 29 to 56 days to germinate. [1]
Banksia repens is a prostrate shrub with horizontal stems covered in a fine velvety fur which spread underground. The large leathery upright leaves arise vertically on petioles 5–15 cm (2–6 in) high. They are 18 to 40 cm (7–16 in) in length and 18 cm (7 in) wide. They are intricately lobed with smaller lobes. Appearing from October to November, the cylindrical inflorescences arise well beyond the leaves and are variable shades of orange, tan and pinkish shades in overall colour and range from 6 to 10 cm (2.4–4 in) high. As the flower spikes age, they fade to a greyish colour, the old flowers persisting. [2]
It is lignotuberous, and resprouts after fire.
It occurs in sandy soils from Cranbrook to Israelite Bay, on the Western Australian south coast. [2]
Specimens of B. repens were first collected by Jacques Labillardière from the vicinity of present-day Esperance, Western Australia on 16 December 1792. Labillardière was botanist to an expedition under Bruni d'Entrecasteaux, which anchored in Esperance Bay on 9 December. On 14 December, the zoologist Claude Riche went ashore, and failed to return. A search the following day proved unsuccessful. Several senior members of the expedition were convinced that Riche must have perished of thirst or at the hands of the Australian Aborigines, and counselled d'Entrecasteaux to sail without him. However Labillardière convinced d'Entrecasteaux to search for another day, and was rewarded not only with the recovery of Riche, but also with the collection of several highly significant botanical specimens, including the first specimens of Anigozanthos (Kangaroo Paw), Nuytsia floribunda (West Australian Christmas Tree), Banksia nivea (Honeypot Dryandra) and B. repens. [3]
Labillardière published a formal description of B. repens in his 1800 Relation du Voyage à la Recherche de la Pérouse ; this was accompanied by an illustration by Pierre-Joseph Redouté. [4]
Robert Brown was familiar with Labillardière's work when he arrived in Australia on HMS Investigator under Matthew Flinders in late 1801. His diary suggests that he collected B. repens from King George Sound, which would be interesting considering that it does not occur there today. His entry for 13 December 1801 refers to having observed in fruit a plant the name of which is illegible. The editors of Brown's diary suggest that the word "looks like bankarepen, which might appear to hint at Banksia repens." On 28 December, Brown records packing plants into boxes, including "the interesting Banksia repens of wch I took care to h[av]e several excellnt plants." The editors of Brown's diary also claim to have located in the British Museum (Natural History) specimens of B. repens collected by Brown at King George Sound, [5] but the Robert Brown's Australian Botanical Specimens, 1801–1805 at the BM online database, maintained by the Western Australian Herbarium, lists only specimens collected by Brown further east at Lucky Bay. [6]
It is one of six closely related species in section Banksia ser. Prostratae, all endemic to Western Australia, and all with a prostrate habit. George holds it as closely related to B. blechnifolia and B. chamaephyton. [2]
The placement of B. repens in George's 1999 arrangement may be summarised as follows: Its specific name is the Latin participle repens "creeping", as its common name of creeping banksia. [2]
Banksia subg. Banksia is a valid botanic name for a subgenus of Banksia. As an autonym, it necessarily contains the type species of Banksia, B. serrata. Within this constraint, however, there have been various circumscriptions.
Banksia ser. Dryandra is a series of 94 species of shrub to small tree in the plant genus Banksia. It was considered a separate genus named Dryandra until early 2007, when it was merged into Banksia on the basis of extensive molecular and morphological evidence that Banksia was paraphyletic with respect to Dryandra.
Banksia petiolaris is a rare species of flowering plant in the family Proteaceae native to Western Australia, where it is found in sandy soils in the south coastal regions from Munglinup east to Israelite Bay. It was first described by Victorian state botanist Ferdinand von Mueller in 1864, and no subspecies are recognised. B. petiolaris is one of several closely related species that will all grow as prostrate shrubs, with horizontal stems and thick, leathery upright leaves. Those of this species can be viable for up to 13 years—the longest-lived of any flowering plant recorded. It bears yellow cylindrical flower spikes, known as inflorescences, up to 16 cm high in spring. As the spikes age, they turn grey and develop up to 20 woody seed pods, known as follicles, each.
As with other flowering plants, the taxonomy of Banksia has traditionally been based on anatomical and morphological properties of the Banksia flower, fruiting structure and seed, along with secondary characteristics such as leaf structure and growth habit. Increasingly, molecular evidence from DNA is providing important new insights into relationships within the genus and between this and other genera in the Proteaceae.
Banksia blechnifolia is a species of flowering plant in the genus Banksia found in Western Australia. It was first described by Victorian state botanist Ferdinand von Mueller in 1864, and no subspecies are recognised. It gained its specific name as its leaves are reminiscent of a fern (Blechnum). B. blechnifolia is one of several closely related species that grow as prostrate shrubs, with horizontal stems and leathery, upright leaves. The red-brown flower spikes, known as inflorescences, are up to 20 centimetres (8 in) high and appear from September to November in the Australian spring. As the spikes age, each turns grey and develops as many as 25 woody seed pods, known as follicles.
"The genus Banksia L.f. (Proteaceae)" is a 1981 monograph by Alex George on the taxonomy of the plant genus Banksia. Published by the Western Australian Herbarium as Nuytsia3(3), it presented George's taxonomic arrangement of Banksia, the first major taxonomic revision of the genus since George Bentham published his arrangement in Flora Australiensis in 1870.
Banksia ser. Quercinae is a valid botanic name for a series of Banksia. First published by Carl Meissner in 1856, the name has had three circumscriptions.
Banksia ser. Cyrtostylis is a taxonomic series within the plant genus Banksia. First published at sectional rank by George Bentham in 1870, it was demoted to a series by Alex George in 1981. The name has had three circumscriptions.
Banksia ser. Crocinae is a taxonomic series in the genus Banksia. The series was first published by Alex George in 1981, but discarded by Kevin Thiele and Pauline Ladiges in 1996, and finally reinstated by George in 1999. Recent cladistic analyses suggest that it is monophyletic or nearly so.
Banksia ser. Grandes is a taxonomic series in the genus Banksia. It consists of two closely related species in section Banksia, both endemic to Western Australia. These are B. grandis and B. solandri.
This is a timeline of developments in knowledge and understanding of the Australian plant genus Banksia:
Kevin Thiele and Pauline Ladiges taxonomic arrangement of Banksia, published in 1996, was a novel taxonomic arrangement that was intended to align the taxonomy of Banksia more closely with the phylogeny that they had inferred from their cladistic analysis of the genus. It replaced Alex George's 1981 arrangement, but most aspects were not accepted by George, and it was soon replaced by a 1999 revision of George's arrangement. However some herbaria have continued to follow Thiele and Ladiges on some points.
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.
Alex George's taxonomic arrangement of Banksia was the first modern-day arrangement for that genus. First published in 1981 in the classic monograph The genus Banksia L.f. (Proteaceae), it superseded the arrangement of George Bentham, which had stood for over a hundred years. It was overturned in 1996 by Kevin Thiele and Pauline Ladiges, but restored by George in 1999. A recent publication by Austin Mast and Kevin Thiele suggests that it will soon be overturned again.
Banksia subser. Leptophyllae is a valid botanic name for a subseries of Banksia. It was published by Kevin Thiele in 1996, but discarded by Alex George in 1999.
Adenanthos obovatus, commonly known as basket flower, or, jugflower, is a shrub of the plant family Proteaceae endemic to Southwest Australia. Described by French naturalist Jacques Labillardière in 1805, it had first been collected by Archibald Menzies in 1791. Within the genus Adenanthos, it lies in the section Eurylaema and is most closely related to A. barbiger. A. obovatus has hybridized with A. detmoldii to produce the hybrid A. × pamela. Several common names allude to the prominent red flowers of the species. It grows as a many-stemmed spreading bush up to 1 m (3.3 ft) high, and about 1.5 m (4.9 ft) across, with fine bright green foliage. Made up of single red flowers, the inflorescences appear from April to December, and peak in spring.
Novae Hollandiae Plantarum Specimen is a two-volume work describing the flora of Australia. Facsimiles of the originals can be found in the online Biodiversity Heritage Library (Vol.1) and Vol 2).
Relation du Voyage à la Recherche de la Pérouse is an 1800 book that gives an account of the 1791-1793 d'Entrecasteaux expedition to Australasia. The title refers to the search for La Pérouse, who disappeared in the region in 1788, a popular, though unsuccessful, object of the mission. Many of the discoveries made by the scientists attached to the expedition were published in the two volumes. The author, Jacques Labillardière, was a French botanist on the voyage, engaged to collect and describe the flora of the continent. The work includes some of the earliest descriptions of Australian flora and fauna, and an account of the indigenous peoples of Tasmania.
Dryandra ser. Aphragma is an obsolete series within the former genus Dryandra. It was first published at sectional rank by Robert Brown in 1830, and was retained at that rank until 1999, when Alex George demoted it to a series. It was discarded in 2007 when Austin Mast and Kevin Thiele sank Dryandra into Banksia.
Adenanthos cuneatus, also known as coastal jugflower, flame bush, bridle bush and sweat bush, is a shrub of the family Proteaceae, native to the south coast of Western Australia. The French naturalist Jacques Labillardière originally described it in 1805. Within the genus Adenanthos, it lies in the section Adenanthos and is most closely related to A. stictus. A. cuneatus has hybridized with four other species of Adenanthos. Growing to 2 m high and wide, it is erect to prostrate in habit, with wedge-shaped lobed leaves covered in fine silvery hair. The single red flowers are insignificant, and appear all year, though especially in late spring. The reddish new growth occurs over the summer.