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CYANTHILLIUM Blume
GYMNANTHEMUM Cass.
HILLIARDIELLA H. Rob.
LINZIA Sch. Bip. ex Walp.
ORBIVESTUS H. Rob.
POLYDORA Fenzl
VERNONIASTRUM H. Rob.
Herman, P.P.J. & Swelankomo, N. (2011) Vernonia (Tribe Vernonieae) and related genera in Southern Africa: updates and corrections Bothalia 41(1) 176-178
Wild, H. (1978) The Compositae of the Flora Zambesiaca area. 8. Vernonieae (Vernonia). Kirkia 11(1) 31-127
Annual or perennial herbs (often with annual stems from woody rootstocks), small to large shrubs, woody scramblers or small trees. Leaves alternate, simple. Capitula homogamous, discoid; florets normally bisexual and fertile. Phyllaries free in 2-many series, imbricate. Corolla various shades of purple, blue, or creamy-white, regularly 5-lobed. Pappus 2-seriate with an outer short whorl of scales or setae and an inner whorl of longer setae. Derivation of name: Named after William Vernon, English botanist of the late 17th century. Worldwide: c. 1,000 species in warm and tropical regions of the Old World and America DRC: 1 taxon. The larvae of the following species of insect eat species of this genus:
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