or perennial, prostrate herbs. Leaves alternate, oblanceolate or spathulate,
entire or toothed. Capitula sessile, small, heterogamous, solitary, usually
axillary, involucre globose. Bracts 1-2 seriate, membranous, sub-equal, with
scarious margin. Flowers yellow. Outer florets numerous, many-seriate, shortly
tubular, female, 2-3 lobed at the apex, inner florets fewer, hermaphrodite,
limb campanulate, 4-lobed. Stamens 4-5, anther base obtuse or minutely
sagittate. Cypsela 4-5 angled. Pappus absent or minute, spongy corona obscurely
toothed at the margin.