in Loudon, Hort. Brit. 364 (1830) APNI
Annual herbs, unbranched or with prostrate branches rooting at nodes. Leaves 1(–2)-pinnatisect, 1–4 cm long, sparsely hairy. Capitula c. 6–8 mm diam. in fruit. Cypsela body obtriangular, 1.5–2 mm long, brown, cottony at the apex and with spinescent stylar apices 1–1.5 mm long; lateral wings with apices somewhat pointed, at least the dorsal surface with conspicuous horizontal ridges along the length of the wings. Flowers Sep.–Nov.
*CVU, *GipP, *Gold, *LoM, *MuF, *NIS, *VRiv. Also naturalised Qld, NSW. Native to South America. Recorded for the first time in 1979 from the Barmah Forest, subsequently gathered near Tocumwal, Killawarra Forest and Warby Range, near Glenluce, near Lake Brambruk, Wyperfeld National Park, Bridgewater, suburban Melbourne and Phillip Island.
The ripe heads often remain intact as a hard, compact burr-like structure after leaves and stolons have withered.
|Bioregion||Occurrence status||Establishment means|
|Central Victorian Uplands||present||naturalised|
|Northern Inland Slopes||present||introduced|
|New South Wales|