Plants of South Eastern New South Wales

Hibbertia dispar

Flowering stems. Photographer Jackie Miles, Nadgee south of Eden

Flowering stems. Photographer Jackie Miles, Nadgee south of Eden

Common name

A guinea flower

Family

Dilleniaceae

Where found

Forest, woodland, rocky slopes, and along streams. Coast and ranges south of Eden.

Notes

Shrub to 0.2 m high, prostrate to sprawling. Branches wiry or rarely becoming rigid-woody, hairy with long spreading simple hairs overtopping short simple or forked and/or stellate hairs (needs a hand lens or a macro app on your phone/tablet to see), rarely with only short stalked stellate hairs. Leaves alternating along the stems, 0.18−1.04 cm long, 0.8−1.5 mm wide, more or less flat above, upper surface warty and sparsely hairy with simple, usually wart-based, hairs, lower surface with a broad central vein tightly wedged between the rolled down margins, sometimes with a row of teeth between the rolled margins and the central vein. Flowers with 5 yellow petals each 5-7 mm long, rarely longer. Stamens 2−9, usually most of them on one side and 0-2 on the other side of the carpels. Carpels 2, occasionally 3, hairy. Outer calyx lobes with a well-developed central ridge, the hairs on the outsides moderately dense, simple, spreading, overtopping a few forked and/or stalked stellate hairs. Outsides of the inner calyx lobes with sparser hairs, rarely almost hairless. Flowers single at the tops of the stems, sometimes on side shoots, on stalks 0−6 mm long. Flowering: July−January.

PlantNET description:  http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Hibbertia~dispar (accessed 2 Octrober, 2020)

Description mainly 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: 39-41, Fig. 1