Carthamus L.

5 species naturalized Aust.; all states and territories

Annual herbs. Leaves basal and cauline, alternate. Heads terminal, solitary or corymbose. Involucre with spreading leafy outer bracts and spiny inner ones. Receptacle chaffy. Florets all tubular; the corolla 5-toothed. Cypselas glabrous, mostly 4-ribbed. Pappus scale-like or absent.