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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 quercifolia, commonly known as the oak-leaved banksia, is a species of shrub that is endemic to the southwestern coast of Western Australia. It has smooth, greenish bark, wavy, wedge-shaped, serrated leaves, yellow, orange or brown flowers in cylindrical spikes, followed by broadly linear follicles surrounded by the remains of the flowers.
Banksia speciosa, commonly known as the showy banksia, is a species of large shrub or small tree in the family Proteaceae. It is found on the south coast of Western Australia between Hopetoun (33°57′ S) and the Great Australian Bight, growing on white or grey sand in shrubland. Reaching up to 8 m (26 ft) in height, it is a single-stemmed plant that has thin leaves with prominent triangular "teeth" along each margin, which are 20–45 cm (7.9–17.7 in) long and 2–4 cm (0.8–1.6 in) wide. The prominent cream-yellow flower spikes known as inflorescences appear throughout the year. As they age they develop up to 20 follicles each that store seeds until opened by fire. Though widely occurring, the species is highly sensitive to dieback and large populations of plants have succumbed to the disease.
The taxonomy of Banksia integrifolia has a long and complex history, the result of confusion caused by the species' great variability, and similarities with some closely related species. The existence of hybrids between B. integrifolia and related species as well as early attempts to classify the species based on dried specimen material have also contributed to the confusion.
Banksia integrifolia subsp. compar is a subspecies of Banksia integrifolia. It has larger, glossier leaves than other subspecies, and occurs much further north.
Robert Brown's taxonomic arrangement of Dryandra was the first arrangement of what is now Banksia ser. Dryandra. His initial arrangement was published in 1810, and a further arrangement, including an infrageneric classification, followed in 1830. Aspects of Brown's arrangements can be recognised in the later arrangements of George Bentham and Alex George.
Stirlingia, commonly known as blueboy, is a genus of 7 species in the family Proteaceae, all of which are endemic to Western Australia.
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.
Bellendena montana, commonly known as mountain rocket, is a species of low-growing multi-stemmed shrub in the plant family Proteaceae. It is endemic to high-altitude subalpine and alpine regions in Tasmania, Australia. The prominent white flower spikes appear over summer, followed by small bright red or yellow fruit in late summer and autumn.
Acidonia microcarpa is a species of shrub in the plant family Proteaceae. It is the only species in the genus Acidonia. It is endemic to the south coast of the Southwest Botanic Province of Western Australia.
Adenanthos terminalis, commonly known as gland flower, yellow gland flower or adenanthos, is a one metre tall shrub in the family Proteaceae. It is found in south eastern regions of Australia, in the states of South Australia and Victoria, and is the most widespread of the two Adenanthos species occurring outside of Western Australia.
Pentapogon is a genus of Australian plants in the grass family. The only known species is Pentapogon quadrifidus. It is native to every Australian State except Queensland, and is also naturalised on the South Island of New Zealand.
Amphipogon, the greybeard grasses, is a genus of Australian plants in the grass family.
Isopogon ceratophyllus, commonly known as the horny cone-bush or wild Irishman, is a plant of the family Proteaceae that is endemic to the coast in Victoria, South Australia and on the Furneaux Group of islands in Tasmania. It is a small woody shrub that grows to 100 cm high with prickly foliage. It is extremely sensitive to dieback from the pathogen Phytophthora cinnamomi
Persoonia laurina, commonly known as the laurel-leaved or laurel geebung, is a shrub of the family Proteaceae native to central New South Wales in eastern Australia. Found in sclerophyll forest, it grows to a height of 2 metres. The yellow flowers appear in late spring.
Persoonia elliptica, commonly known as snottygobble or spreading snottygobble, is a plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is an erect shrub or small tree with egg-shaped or lance-shaped leaves and groups of cylindrical yellow flowers. It usually grows in woodland or forest dominated by jarrah or marri within 50 km (30 mi) of the coast.
Synaphea spinulosa is a species of small shrub in the flowering plant family Proteaceae. It is endemic to Western Australia. Together with Acacia truncata, it was the first Australian endemic to be scientifically described and named, and the specimen upon which that description is based is the oldest extant specimen of an Australian plant, and very likely among the first Australian plant specimens ever collected.
Johnsonia is a genus five species of herbs in the family Asphodelaceae, all of which are endemic to the south-west of Western Australia. They are grass-like plants with minute flowers surrounded by bracts which are often tinged with white, pink or cream.
Isopogon longifolius is a small shrub in the family Proteaceae that is endemic to the southwest of Western Australia.
Franklandia fucifolia, or lanoline bush, is native to the south-west of Western Australia. It is a species in the Franklandia genus of the Proteaceae family.
References
- ↑ Kew World Checklist of Selected Plant Families
- ↑ Brown, Robert (1810). Prodromus Florae Novae Hollandiae. p. 176.
- ↑ Australian Biological Resources Study (2002). Flora of Australia. 43. Csiro Publishing. p. 374.
- ↑ Wheeler, Judith Roderick; Marchant, N.G.; Lewington, Margaret (2002). Flora of the South West: Bunbury, Augusta, Denmark. UWA Publishing. pp. 412–413.
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