Flora of New Zealand Series

Capitula small, solitary and sessile or subsessile, or in racemes, heterogamous, discoid. Involucre subhemispheric; phyll. subequal, in c. 2 series, margins scarious, receptacle nude. ♀ exterior in several rows, fertile, with minute tubular corolla. Florets of disk few, perfect, ± campanulate. Anthers obtuse at base, style-arms of perfect florets truncate. Achenes bluntly 3-4-ribbed; pappus 0. Annual to perennial herbs with alt. lvs. A genus of some 15 spp., mostly of Chile, but a few in Madagascar, tropical Asia, Australia. The N.Z. sp. widespread, doubtfully indigenous.