Hibbertia rhynchocalyx is a species of flowering plant in the family Dilleniaceae and is endemic to the Gibraltar Range National Park in eastern Australia. It is a low shrub with hairy foliage, oblong leaves and yellow flowers with twelve stamens joined at the base on one side of two hairy carpels.
Hibbertia rhynchocalyx is a low shrub with spreading, hairy branches. The leaves are more or less oblong, Шаблон:Cvt long, Шаблон:Cvt wide on a petioleШаблон:Cvt long, and covered with both long, simple hairs and short, star-like hairs. The flowers are mainly arranged singly on the ends of side shoots on a peduncleШаблон:Cvt long with a linear bractsШаблон:Cvt long at the base. The five sepal are joined at the base, the outer lobes Шаблон:Cvt long, the inner lobes slightly shorter. The petals are yellow, egg-shaped with the narrower end towards the base or spatula-shaped, Шаблон:Cvt long with twelve stamens joined at the base, on one side of the two carpels, each carpel with two ovules. Flowering mostly occurs in October.[1][2]
This hibbertia grows on east-facing slopes, usually in Eucalyptus resinifera forest, in the Gibraltar National Park in north-eastern New South Wales.[1][2]
