Ammobium
2 species endemic Aust.; Qld, NSW, S.A.
Ammobium alatum
Perennial herb. Leaves basal, entire, lanceolate to spathulate, 10–20 cm long, tapering into a winged petiole, green-glaucous above, silvery white with simple hairs below. Aerial stems up to 1 m long, silvery white with 4 wings 1–3 mm wide running from top to bottom. Heads 6 to c. 10 in a terminal corymb. Heads mostly 2 cm diam. Involucral bracts in several rows, white, papery; the uppermost large with expanded laminas. Florets all tubular, yellow, becoming darker with age, bisexual, each subtended by a scale. Cypselas 4-angled, c. 4 mm long, 1 mm diam. Pappus a membranous cup c. 0.5 mm high. Mainly in cooler parts of the area. Often common in grasslands and woodlands. Fl. summer