F. Muell., Fragm. Phyt. Aust. 2:135 (1861).
Synonymy: Wollastonia ecliptoides F. Muell., Pl. Indig. Col. Vic. t. 39 (1865).
Common name: Yellow twin-heads.
Annual or biennial herb to 25 cm high; stems prostrate to ascending, rooting at the nodes, weak, glabrous to slightly scabrous; leaves sessile, in distant pairs, narrowly lanceolate, abruptly attenuate at the base, entire, 1.5-5 cm long, 2-7 mm wide, scabrous with appressed hairs.
Peduncles in opposite pairs or solitary, filiform, naked, 1-3 cm long, unbranched; involucral bracts 8-10, lanceolate, 3-5 mm long, exceeding the ligules, slightly scabrous; ray florets 8-12; ligules obovate, emarginate, c. 2 mm long, yellow; disk florets 8-13, yellow.
Achenes all similar, compressed-cylindric, blackish, c. 3 mm long, smooth to densely tuberculate; pappus a ciliolate rim c. 0.5 mm high.
||Branch, leaf, capitulum and achene.
Image source: fig. 644b in Jessop J.P. & Toelken H.R. (Ed.) 1986. Flora of South Australia (4th edn).|
Cunningham et al. (1982) Plants of western New South Wales, p. 666.
On heavy soils along streams and in areas subject to flooding.
All mainland States.
Flowering time: Dec. — April.
SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia
Not yet available