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Banksia ashbyi subsp. ashbyi facts for kids

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Banksia ashbyi subsp. ashbyi
B ashbyi gnangarra 03.jpg
Scientific classification e
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Banksia
Species:
Subspecies:
B. a. subsp. ashbyi
Trinomial name
Banksia ashbyi subsp. ashbyi

Banksia ashbyi subsp. ashbyi is a recently recognised subspecies of Banksia ashbyi. It is the non-lignotuberous arborescent form of the species, which occurs between Geraldton and Shark Bay, and in the Kennedy Ranges.

Description

This subspecies is essentially the fire-sensitive tree form of B. ashbyi. It grows as a tree or shrub up to seven metres in height, and lacks a lignotuber. This is in contrast to the other subspecies, B. ashbyi subsp. boreoscaia, which is a lignotuberous shrub that reaches no higher than two metres. In addition, B. ashbyi subsp. ashbyi usually has deep green leaves, whereas those of B. ashbyi subsp. boreoscaia are consistently grey-green in colour.

Distribution and habitat

Banksia ashbyi subsp. ashbyi occurs in two disjunct populations: between Geraldton and Shark Bay, and around 400 kilometres further north in the Kennedy Range.

Taxonomy

Although distinct lignotuberous and non-lignotuberous forms of B. ashbyi had long been recognised, they were not formally described as taxa until 2008, when Alex George published the lignotuberous form as B. ashbyi subsp. boreoscaia, thus invoking the autonym B. ashbyi subsp. ashbyi for the non-lignotuberous form.

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