Crassocephalum
Crassocephalum is a genus the common names of whose members include ragleaf, thickhead, and bologi. Several species are raised as leaf vegetables and used for medicine, especially in West Africa. Similar to Senecio, but differing in never having ray florets. A calyculus of short bracts is present. The genus is typically thistle-like in appearance, but all parts are soft and not spiny.
Species
[Image:Crassocephalum crepidioides 16.jpg|thumb|C. crepidioides]Species include:Crassocephalum afromontanum R.E. Fr., Acta Horti Berg. 9: 144, 1928Crassocephalum aurantiacum Kuntze, Revis. Gen. Pl. 1: 331, 1891Crassocephalum auriformis S. Moore, J. Linn. Soc., Bot. 37: 171, 1904Crassocephalum baoulense Milne-Redh., Kew Bull. 5: 377, 1951Crassocephalum bauchiense Milne-Redh., Kew Bull. 5: 376, 1951Crassocephalum behmianum S. Moore, J. Bot. 50: 212, 1912Crassocephalum biafrae S. Moore, J. Bot. 50: 211, 1912Crassocephalum bojeri Robyns, Fl. Spermat. Parc Natl. Albert 2: 544, 1947Crassocephalum bougheyanum C.D. Adams, J. W. African Sci. Assoc. 3: 111, 1957Crassocephalum bumbense S. Moore, J. Linn. Soc., Bot. 47: 279, 1925Crassocephalum butaguensis S. Moore, J. Bot. 50: 211, 1912Crassocephalum cernuum Moench, Suppl. Pl. 370, 1781Crassocephalum coeruleum R.E. Fr., Wiss. Erg. Schwed. Rhod.-Kongo Exp. 342, 1916Crassocephalum crepidioides S. Moore, J. Bot. 50: 211–212, 1912Crassocephalum diversifolium Hiern, Cat. Afr. Pl. 1: 594, 1898Crassocephalum ducis-aprutii S. Moore, J. Bot. 50: 212, 1912Crassocephalum effusum C. Jeffrey, Kew Bull. 41: 907, 1986Crassocephalum flavum Decne., Ann. Sci. Nat., Bot., sér. 2, 2: 265, 1834Crassocephalum gossweileri S. Moore, J. Bot. 56: 226, 1918Crassocephalum gracile Milne-Redh. ex Guinea, Anales Jard. Bot. Madrid 1: 307, 1951Crassocephalum guineense C.D. Adams, J. W. African Sci. Assoc. 8: 129, 1964Crassocephalum heteromorphum C. Jeffrey, Kew Bull. 41: 908, 1986Crassocephalum lemuricum Humbert, Fl. Madagasc. 189: 832, 1963Crassocephalum libericum S. Moore, J. Bot. 54: 282, 1916Crassocephalum longirameum S. Moore, J. Bot. 58: 46, 1920Crassocephalum luteum Humbert, Fl. Madagasc. 189: 836, 1963Crassocephalum macropappus S. Moore, J. Bot. 1912: 212, 1912Crassocephalum manampanihense Humbert, Fl. Madagasc. 189: 835, 1963Crassocephalum mannii Milne-Redh., Kew Bull. 5: 377, 1951Crassocephalum miniatum Hiern, Cat. Afr. Pl. 1: 595, 1898Crassocephalum montuosum Milne-Redh., Kew Bull. 5: 376, 1951Crassocephalum multicorymbosum S. Moore, J. Bot. 50: 211, 1912Crassocephalum notonioides S. Moore, J. Bot. 40: 341, 1902Crassocephalum paludum C. Jeffrey, Kew Bull. 41: 906, 1986Crassocephalum picridifolium S. Moore, J. Bot. 50: 212, 1912Crassocephalum radiatum S. Moore, J. Bot. 56: 227, 1918Crassocephalum rubens S. Moore, J. Bot. 50: 212, 1912Crassocephalum ruwenzoriensis S. Moore, J. Linn. Soc., Bot. 35: 352, 1902Crassocephalum sarcobasis S. Moore, J. Bot. 50: 211, 1912Crassocephalum scandens Hiern, Cat. Afr. Pl. 595, 1898Crassocephalum sonchifolium Humbert, Fl. Madagasc. 189: 834, 1963Crassocephalum sonchifolium Less., Linnaea 6: 252, 1831Crassocephalum splendens C. Jeffrey, Kew Bull. 41: 905, 1986Crassocephalum subscandens S. Moore, J. Bot. 50: 211, 1912Crassocephalum togoense C.D. Adams, J. W. African Sci. Assoc. 1: 27, 1954Crassocephalum uvens S. Moore, J. Bot. 50: 212, 1912Crassocephalum valerianifolium Less., Linnaea 5: 163, 1830Crassocephalum vitellinum S. Moore, J. Bot. 50: 212, 1912