Usually foetid, annual herbs, sometimes perennial and shrubby.
Calyx tubular, 5-lobed; the tube circumscissile near the base after anthesis, leaving an annular remnant which expands in fruit. Corolla white, violet or purplish: tube long and narrow, flared upwards with short cuspidate or caudate lobes. Fruit a spherical, spiny (rarely spines 0) usually dehiscent capsule.
Derivation of name: from an Indian vernacular name Worldwide: 12 species, native to southern N America and widely introduced and naturalised into warm and temperate regions of the world Zimbabwe: 3 taxa. |
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