Banksia trifontinalis
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Banksia trifontinalis is a species of openly-branched shrub that is endemic to the southwest of Western Australia. It has broadly linear, coarsely serrated, sharply pointed leaves, pale yellow flowers in heads of about sixty, and oblong to egg-shaped follicles.
Description
Banksia trifontinalis is an openly branched shrub that typically grows to a height of Template:Cvt but does not form a lignotuber. It broadly linear, coarsely serrated leaves that are Template:Cvt long and Template:Cvt wide and sessile or on a petiole up to Template:Cvt long. There are between five and ten sharply-pointed triangular teeth on each side of the leaves. The flowers are pale yellow and arranged in heads of between fifty-five and sixty-five with egg-shaped to lance-shaped involucral bracts up to Template:Cvt long at the base of the head. The perianth is Template:Cvt long and the pistil Template:Cvt long and more or less straight. Flowering occurs from August to September and the fruit is a sparsely hairy, oblong to egg-shaped follicle Template:Cvt long.[1][2]
Taxonomy
The type specimen was collected west of Three Springs, Western Australia by Alex George on 6 August 1986. George published a description of the species in 1996 in the journal Nuytsia, naming it Dryandra trifontinalis. The specific epithet is from the Latin tri- ("three") and fontinalis ("of a spring"), in reference to the town of Three Springs.[3][4][5]
In 2007, all Dryandra species were transferred to Banksia by Austin Mast and Kevin Thiele and this species was given the name Banksia trifontinalis.[6][7]
Distribution and habitat
Banksia trifontinalis occurs only in a few populations in the vicinity of Arrino and Three Springs in the Geraldton Sandplains biogeographic region. It is locally common, and grows on lateritic soil in low woodland.[1][2]
Conservation status
This banksia is classified as "Priority Three" by the Government of Western Australia Department of Parks and Wildlife[2] meaning that it is poorly known and known from only a few locations but is not under imminent threat.[8]
References
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