Common name: Moss sunray
Hyalosperma demissum (A.Gray) Paul G.Wilson APNI*
Synonyms: Helipterum demissum (A.Gray) Druce APNI*
Description: Much-branched rounded annual 5–20 mm high, sparsely villous to glabrous.
Leaves linear-triquetrous, c. 5 mm long, c. 0.2 mm wide, acuminate.
Heads terminal to branches, subtended by leaves; heads cup-shaped, c. 3 mm long, glabrous, not radiant; involucral bracts pale green to straw-coloured, glossy, innermost with an erect inconspicuous pale brown to off-white apiculum c. 1 mm long. Florets c. 20. Corollas narrow-cylindrical, very shortly 3- or 4-toothed, c. 1.5 mm long.
Achenes obovoid, c. 0.7 mm long, pearly; pappus bristles equal to corolla, plumose throughout.
Distribution and occurrence: Grows in woodland on shallow soils in exposed situations, chiefly in the West Wyalong district, also scattered in southwestern divisions.
NSW subdivisions: CWS, SWS, SWP, SFWP
Other Australian states: Vic. Tas. W.A. S.A.
Text by Paul G. Wilson
Taxon concept: Flora of NSW 3 (1992)
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.