Common name: Wingwort
Ceratogyne obionoides Turcz. APNI*
Description: Annual or ephemeral herb 6–15 cm high, erect, downy; stems several, ascending, unbranched or few-branched, terete, ± pubescent.
Leaves basal or alternate, oblanceolate, 6–18 mm long, 1.5–4 mm wide, base attenuate, margins entire, lamina pubescent with prominent midvein; cauline leaves smaller, 3–10 mm long, 1–3 mm wide.
Heads to 2 mm diam., yellow, shortly pedunculate; involucral bracts 3–5, equal, c. 2 mm long. Female florets 3–5.
Achenes linear, 4–5 mm long, greenish to brown, pubescent, achenes of the female florets enlarging to at least twice the length of the involucral bracts and with broad herbaceous wings, the incurved ciliate auricles at the top as long as the corolla; appendages 2, divergent, oblong, curved, ciliate with 2-hooked hairs; inner florets 3 or 4.
Distribution and occurrence: Grows in Callitris or eucalypt forest on dry rocky soils in the Cobar–Nyngan to Rankins Springs area.
NSW subdivisions: NWP, SWP
Other Australian states: Vic. W.A. S.A.
Text by E. A. Brown
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
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