Podospermum

but modified and names used differing
1Plants annual or biennial, 20-50 (or more) cm high; stems glabrous, leaves often glabrous; anthers 1.8-2 mm long; achenes glabrous, 12-13 mm long; pappus hairs 18-20 mm long
1'Plants perennial with a thick taproot; generally less than 20 cm high; stems and leaves canescent to pubescent, rarely glabrous; anthers c. 4 mm long; achenes thinly lanuginose on the fertile part, 6-7 mm long; pappus hairs c. 9 mm long