Ironweed

anthelmintica: vermifuge, worm-expelling

Vernonia anthelmintica (L.) Wilid. Sp. PI. 3: 1634. 1804
Conyza anthelmintica L. Sp. PI. ed. 2. 1207. 1763. Baccharcides anthelmintica Moench, Meth. 578. 1794. Ascaricida indica Cass. Diet. Sci. Nat. 3: Suppl. 38. 1816. Ascaricida anthelmintica Sweet, Hort. Brit. 219. 1826.
Stems herbaceous, branching, glabrous or nearly so; leaf-blades thin, bright-green,
obovate to oblanceolate, 8-18 cm. long, 2-6 cm. wide, acute or somewhat acuminate, coarsely
and sharply serrate with mucronate teeth, gradually tapering into the narrow sessile base,
very sparsely puberulent on both sides, or essentially glabrous; heads many-flowered, all
pedieelled, forming a loose, few-headed, terminal, corymbose cluster; involucre hemispheric,
10-12 mm. high; scales erect, linear-oblong, acute, glabrous or puberulent. the inner colorless
and appressed, the outer colorless at the appressed base, green and foliaceous above; achenes
black, hirsute, 4 mm. long; pappus tawny tinged with rose, the inner series 6 mm. long, the
outer minute, of narrowly triangular scales about 0.4 mm. long.
Type locality: India.
Distribution: Tropics of the Old World; introduced into Jamaica.

Baccharoides anthelmintica is a species of perennial plant from the family Asteraceae. It is native to South Asia and Eastern Africa. Its habitats include deciduous woodland, open dry forests, and riverine forests.