Trioncinia patens A.E.Holland & D.W.Butler

Perennial to 50 cm tall. Leaves: petioles 4 cm long; lamina c. 3 cm long, 2 cm wide. Capitula 6–9 mm diam.; outer subtending bracts 1–2 mm long, 0.5–1 mm wide; involucral bracts ovate, oblong or obovate, 2.4–3.6 mm long, 0.8–1.1 mm wide, acute to obtuse; paleae 3–4 mm long, 0.1–0.3 mm wide. Ray florets with ligule 1.8–2.2 mm long, 1–1.4 mm wide. Disc florets 11–17, 2–2.5 mm long; anther appendage obtuse. Achenes 5–7 mm long, 0.7–1.0 mm diam., pale brown, lacking longitudinal ribs, with thin transverse ridges, smooth between, and not becoming warty or thickened. Pappus awns 4, 1–2 mm long, spreading at 90º to each other and the body of the achene.

Growing in eucalypt woodland on basalt-derived dark-grey tored-brown clays or clay-loams, often with gravels.