Hibbertia obtusifolia
Hoary Guinea Flower
Hoary Guinea Flower
Not at ANBG
Wikipedia links: Angiosperms > Eudicots > Rosids > Dilleniales > Dilleniaceae > Hibbertia obtusifolia
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Overview:
Hibbertia obtusifolia, commonly known as hoary guinea flower, is a species of flowering plant in the family Dilleniaceae and is endemic to south-eastern Australia
It is usually an erect shrub with spreading branches, lance-shaped to egg-shaped leaves with the narrower end towards the base, and yellow flowers with thirty or more stamens arranged around three glabrous carpels
Common name: Hoary Guinea Flower
Conservation status: Least Concern (except in Tasmania)
Presumed extinct in Tasmania under the Tasmanian Government Threatened Species Protection Act 1995
Etymology:
The name Hibbertia honours George Hibbert, a patron of botany and slave trader
The specific epithet (obtusifolia) means "blunt leaved"
Flowers:
The flowers are arranged on the ends of branches or short side shoots and are sessile with two or three bracts 2.8–3.6 mm long at the base
The sepals are 4.8–8.5 mm (0.19–0.33 in) long and of unequal lengths
The petals are mid to pale yellow, egg-shaped with the narrower end towards the base, and 6.6–16 mm long
There are thirty or more stamens arranged around three glabrous carpels
Flowering occurs from September to December
Fruit:
Leaves:
The leaves are lance-shaped to egg-shaped leaves with the narrower end towards the base, 6–45 mm long and 1.5–14 mm wide with a rounded or truncated end
Stem & branches:
Roots:
Habit:
An erect shrub with spreading branches up to 60 cm long that are hairy when young
Habitat:
Forest and woodland
Distribution:
Hoary guinea flower is widespread and locally common in south-east Queensland, all but the far west of SW, the ACT and in mainly eastern Victoria
There is a single record from Clarke Island in Bass Strait in 1892, but recent surveys have not located the species and it is presumed extinct in that state
Additional notes:
Taxonomy
Hibbertia obtusifolia was first formally described in 1817 by Swiss botanist Augustin Pyramus de Candolle in Regni Vegetabilis Systema Naturale from specimens collected by George Caley
Sources of information: