Solivaea Cassini, nom. illeg. superfl.

Herbs, annual, small. Leaves alternate, pinnatisect. Capitulum solitary at leaf axils, disciform. Involucres hemispheric; phyllaries in 2 rows, equal, margin scarious. Receptacle convex or conical, epaleate. Marginal florets female, without corolla; disk florets sterile, corolla tubular, 3- or 4-lobed. Anther obtuse at base. Style branches fused. Achenes dorsiventrally flattened, laterally winged; wings sometimes projected, teeth apex with persistent and spinescent style, sometimes transversely wrinkled to sulcate. Pappus absent.

Eight species: mostly in Australia, North and South America; two species (both introduced) in China.

(Authors: Shi Zhu (石铸 Shih Chu); Christopher J. Humphries, Michael G. Gilbert)