Banksia sessilis var. flabellifolia

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Banksia sessilis var. flabellifolia
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Banksia
Species:
Variety:
B. s. var. flabellifolia
Trinomial name
Banksia sessilis var. flabellifolia
Synonyms

Dryandra sessilis var. flabellifoliaA.S.George

Banksia sessilis var. flabellifolia is a variety of Banksia sessilis (parrot bush).

Contents

Description

It grows as a shrub up to five metres high. Unlike other varieties of B. sessilis, it has hairless stems. The leaves are fan shaped, with a long, toothless lower margin, and a toothed end. As such its leaves are quite similar to some of those of B. sessilis var. cygnorum, but are larger, being up to four centimetres long and 3.5 centimetres wide. They also lack lobes at the base. As with other varieties of B. sessilis, the flowers are greenish-yellow. Each head contains around 90 flowers. [1] [2]

Taxonomy

This variety was first published by Alex George in 1996, based on a specimen he collected on 11 August 1993 on West Binnu Road, 4.4 kilometres east of Yeringa South Road, north-north-west of Northampton, Western Australia. The varietal epithet is from the Latin flabellum ("fan") and folium ("leaf"), and refers to the fan-shaped leaves characteristic of this variety. [3] The name given at the time was Dryandra sessilis var. flabellifolia, and this stood until 2007, when Austin Mast and Kevin Thiele transferred Dryandra into Banksia ; [4] thus the variety's current full name is Banksia sessilis var. flabellifolia (A.S.George) A.R.Mast & K.R.Thiele. [5]

In 1999, George placed it between B. sessilis var. sessilis and B. sessilis var. cordata in phyletic order. [6]

Distribution and habitat

B. sessilis var. flabellifolia grows in both deep sand and on laterite, between Geraldton and Kalbarri inland to Northampton and south as far as Moora, in the South West Botanical Province of Western Australia [1]

Cultivation

This variety is little known in cultivation. It is suggested that cultivation requirements would be similar to the better-known B. sessilis var. sessilis, but that this variety would be better suited to hotter, drier coastal areas. [1]

Related Research Articles

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Banksia nutans, commonly known as nodding banksia, is a species of shrub native to the south coast of Western Australia in the genus Banksia. Growing to a metre (3 ft) tall, it has pale blue-green fine-leaved foliage and unusual purple-brown inflorescences which hang upside down rather than grow upright like most other banksias.

<i>Banksia sessilis</i> Species of plant of Western Australia

Banksia sessilis, commonly known as parrot bush, is a species of shrub or tree in the plant genus Banksia of the family Proteaceae. It had been known as Dryandra sessilis until 2007, when the genus Dryandra was sunk into Banksia. The Noongar peoples know the plant as budjan or butyak. Widespread throughout southwest Western Australia, it is found on sandy soils over laterite or limestone, often as an understorey plant in open forest, woodland or shrubland. Encountered as a shrub or small tree up to 6 m (20 ft) in height, it has prickly dark green leaves and dome-shaped cream-yellow flowerheads. Flowering from winter through to late spring, it provides a key source of food—both the nectar and the insects it attracts—for honeyeaters in the cooler months, and species diversity is reduced in areas where there is little or no parrot bush occurring. Several species of honeyeater, some species of native bee, and the European honey bee seek out and consume the nectar, while the long-billed black cockatoo and Australian ringneck eat the seed. The life cycle of Banksia sessilis is adapted to regular bushfires. Killed by fire and regenerating by seed afterwards, each shrub generally produces many flowerheads and a massive amount of seed. It can recolonise disturbed areas, and may grow in thickets.

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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.

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

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Banksia nobilis, commonly known as the golden dryandra, great dryandra or kerosene bush, is a shrub of the family Proteaceae which is endemic to Western Australia. It occurs on lateritic rises from Eneabba to Katanning in the state's Southwest Botanic Province. With large pinnatifid leaves with triangular lobes, and a golden or reddish pink inflorescence, it is a popular garden plant. It was known as Dryandra nobilis until 2007, when all Dryandra species were transferred to Banksia by Austin Mast and Kevin Thiele. There are two subspecies, B. nobilis subsp. nobilis and B. nobilis subsp. fragrans.

Banksia prionophylla is a shrub endemic to Western Australia. Known only from a single population of around 70 plants in a remote part of Western Australia, it is considered rare but not endangered. It was first discovered in 2001, and published under the genus Dryandra in 2005, before being transferred into Banksia in 2007.

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

Banksia proteoides, commonly known as king dryandra, is a shrub endemic to Western Australia. It was known as Dryandra proteoides until 2007, when all Dryandra species were transferred to Banksia by Austin Mast and Kevin Thiele.

Banksia viscida, commonly known as sticky dryandra, is a small shrub known only from four laterite hills in semi-arid inland Western Australia. Known until recently as Dryandra viscida, it is thought to be rare but not threatened.

<i>Banksia spinulosa <span style="font-style:normal;">var.</span> spinulosa</i> Variety of shrub in the family Proteaceae from the east coast of Australia

Banksia spinulosa var. spinulosa is a shrub that grows along the east coast of Australia, in Queensland and New South Wales.

<i>Banksia spinulosa <span style="font-style:normal;">var.</span> cunninghamii</i> Variety of shrub in the family Proteaceae from the east coast of Australia

Banksia spinulosa var. cunninghamii, sometimes given species rank as Banksia cunninghamii, is a shrub that grows along the east coast of Australia, in Victoria and New South Wales. It is a fast-growing non-lignotuberous shrub or small tree infrequently cultivated.

<i>Banksia undata <span style="font-style:normal;">var.</span> undata</i> Variety of shrub in the family Proteaceae endemic to Western Australia

Banksia undata var. undata is a shrub endemic to Western Australia.

Banksia undata var. splendens is a shrub endemic to Western Australia.

<i>Banksia sessilis <span style="font-style:normal;">var.</span> cordata</i> Variety of plant in the family Proteaceae from the extreme south-west corner of Western Australia

Banksia sessilis var. cordata is a variety of Banksia sessilis, with unusually large leaves and flower heads. It is a rare variety that is restricted to the extreme south-west corner of Western Australia.

<i>Banksia sessilis <span style="font-style:normal;">var.</span> sessilis</i> Variety of plant in the family Proteaceae from Western Australia

Banksia sessilis var. sessilis is the most populous and most widespread variety of Banksia sessilis.

<i>Banksia sessilis <span style="font-style:normal;">var.</span> cygnorum</i> Variety of plant of Western Australia

Banksia sessilis var. cygnorum is a variety of Banksia sessilis.

<i>Dryandra</i> ser. <i>Floribundae</i> Obsolete series within the former genus Dryandra

Dryandra ser. Floribundae is an obsolete series within the former genus Dryandra. It was first published by George Bentham in 1870, and was given a new circumscription by Alex George in 1996, but was ultimately discarded in 2007 when Austin Mast and Kevin Thiele sunk Dryandra into Banksia.

Banksia dallanneyi var. mellicula is a variety of Banksia dallanneyi subsp. dallanneyi. It was known as Dryandra lindleyana var. mellicula until 2007, when Austin Mast and Kevin Thiele sunk all Dryandra into Banksia. Since there was already a Banksia named Banksia lindleyana, Mast and Thiele had to choose a new specific epithet for D. lindleyana and hence for this variety of it. As with other members of Banksia ser. Dryandra, it is endemic to the South West Botanical Province of Western Australia.

Banksia densa var. parva is a variety of Banksia densa. It was known as Dryandra conferta var. parva until 2007, when Austin Mast and Kevin Thiele sunk all Dryandra into Banksia. Since there was already a Banksia named Banksia conferta, Mast and Thiele had to choose a new specific epithet for D. conferta and hence for this variety of it. As with other members of Banksia ser. Dryandra, it is endemic to the South West Botanical Province of Western Australia.

Banksia tenuis var. reptans is a variety of Banksia tenuis. It was known as Dryandra tenuifolia var. reptans until 2007, when Austin Mast and Kevin Thiele sunk all Dryandra into Banksia. Since the name Banksia tenuifolia had already been used, Mast and Thiele had to choose a new specific epithet for D. tenuifolia and hence for this variety of it. As with other members of Banksia ser. Dryandra, it is endemic to the South West Botanical Province of Western Australia.

Banksia tenuis var. tenuis is a variety of Banksia tenuis. It was known as Dryandra tenuifolia var. tenuifolia until 2007, when Austin Mast and Kevin Thiele sunk all Dryandra into Banksia. Since the name Banksia tenuifolia had already been used, Mast and Thiele had to choose a new specific epithet for D. tenuifolia and hence for this variety of it. As with other members of Banksia ser. Dryandra, it is endemic to the South West Botanical Province of Western Australia. As an autonym, it is defined as encompassing the type material of the species.

References

  1. 1 2 3 Cavanagh, Tony; Pieroni, Margaret (2006). The Dryandras. Melbourne: Australian Plants Society (SGAP Victoria); Perth: Wildflower Society of Western Australia. ISBN   1-876473-54-1.
  2. "Dryandra sessilis var. cordata (Meisn.) A.S.George". Flora of Australia Online. Department of the Environment and Heritage, Australian Government.
  3. George, Alex (1996). "New taxa and a new infrageneric classification in Dryandra R.Br. (Proteaceae: Grevilleoideae)". Nuytsia . 10 (3): 313–408.
  4. Mast, Austin R.; Thiele, Kevin (2007). "The transfer of Dryandra R.Br. to Banksia L.f. (Proteaceae)". Australian Systematic Botany. 20: 63–71. doi:10.1071/SB06016.
  5. "Banksia sessilis var. flabellifolia (Gand.) A.R.Mast & K.R.Thiele". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government.
  6. George, Alex (1999). "Dryandra". In Wilson, Annette (ed.). Flora of Australia: Volume 17B: Proteaceae 3: Hakea to Dryandra. CSIRO Publishing / Australian Biological Resources Study. ISBN   0-643-06454-0.