Plants of South Eastern New South Wales

Hibbertia singularis

Common name

A guinea flower

Family

Dilleniaceae

Where found

Kydra Peak.

Notes

Shrub to 0.15 m tall, sprawling. Branches wiry, soon becoming rigid, hairy with scattered simple hairs over minute stalked stellate hairs (needs a hand lens or a macro app on your phone/tablet to see), soon becoming hairless. Leaves alternating along the stems, 0.15–0.42 cm long, 0.6–1 mm wide, upper surface sparsely hairy with wart-based hairs, soon becoming hairless leaving warts mainly on the rolled down margins, lower surface sparsely hairy, soon hairless, with a very broad central vein usually flush with and wedged tightly in between the margins. Flowers with 5 yellow petals each up to 9.8 mm long. Stamens 22–25, with as many stamens not producing pollen, arranged around the carpels. Filaments threadlike, 1.8–2.1 mm long, scarcely joined together at the base. Anthers 0.9–1.2 mm long. Carpels 3, sparsely hairy. Outer calyx lobes 5.5-9.3 mm long, 2.6-4.2 mm wide. Flowers single, mainly at the ends of the main stems, on stalks 9.8–22.4 mm long. Flowers summer.

Description based on:  Toelken, H.R. (2013), Notes on Hibbertia subg. Hemistemma (Dilleniaceae) 9. The eastern Australian H. vestita group, including H. pedunculata and H. serpyllifolia. Journal of the Adelaide Botanic Gardens 26: 62-63