Capitula many-fld, homogamous; florets ligulate, yellow. Phyll. in several series, outer spreading, inner subequal, erect. Receptacle flat, nude. Anthers acutely sagittate at base. Achenes with 5-10 longitudinal ribs, transversely rugose above, abruptly narrowed to short or long beak. Pappus-hairs in 2 series; outer slender, spreading; inner sparsely plumose, somewhat widened at base. Annual to perennial herbs with white latex; stems and lvs us. coarsely bristly. Genus of c. 40 spp., mainly of temperate regions. The N.Z. sp. has a wide range in temperate regions.