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Banksia integrifolia subsp. monticola facts for kids

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White Mountain banksia
Banksia integrifolia subsp. monticola inflorescence.jpg
Inflorescence of Banksia integrifolia subsp. monticola in late bud
Scientific classification e
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Banksia
Species:
Subspecies:
B. i. subsp. monticola
Trinomial name
Banksia integrifolia subsp. monticola
K.R.Thiele

Banksia integrifolia subsp. monticola, commonly known as White Mountain banksia, is a subspecies of Banksia integrifolia. Described in 1994, it occurs in the Blue Mountains and in northern New South Wales. It contains the largest recorded Banksia trees.

Description

B. integrifolia subsp. monticola is similar to B. integrifolia subsp. integrifolia, but differs in having longer, narrower leaves, and follicles that are more deeply embedded in the old flower spike. Follicles are less likely to open spontaneously. Inflorescences are similar to those of subspecies integrifolia, but may be pink-tinged in some localities, notably in Barrington Tops National Park. This subspecies contains the largest recorded Banksia specimens, with trees in Washpool National Park growing to 35 metres (110 feet) high. It is the most frost tolerant banksia tree of all.

Taxonomy

See also: Taxonomy of Banksia integrifolia and Taxonomy of Banksia

For many years this subspecies was considered a mountain form of B. integrifolia subsp. compar, although it is now known to be closer to B. integrifolia subsp. integrifolia both phenetically and genetically. It was identified as a separate subspecies in Gwen Harden's 1991 publication Flora of New South Wales, but Harden did not publish a name for it, instead referring to it as "Banksia integrifolia subsp. A". In 1994, Kevin Thiele confirmed its status as a subspecies, and published it as Banksia integrifolia subsp. monticola K.R.Thiele. The subspecies epithet monticola refers to its montane distribution, and is a Latin word meaning "dweller in the mountains".

Distribution and habitat

Unlike the other B. integrifolia subspecies, B. integrifolia subsp. monticola occurs well inland, in the Blue Mountains between Mount Wilson and the New England National Park. It grows in fertile soils derived from igneous rock at altitudes above 650 metres, whereas the other subspecies occur only at altitudes below 500 metres, and are generally associated with infertile soils derived from sedimentary rock.

Cultivation and uses

It is valued because of its frost hardiness. It has been planted in England.

Gallery

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