Monographs Details: Guizotia
Authority: Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Description:Genus Description - Heads radiate, the rays pistillate and fertile, yellow; invol bracts few, subherbaceous, uniseriate; receptacle convex or conic, its bracts flat or nearly so, membranous or subscarious, striate, subtending rays as well as disk-fls; disk-fls perfect and fertile, the cor densely woolly below the middle; style-branches flattened, with subulate, hairy appendage; achenes glabrous, ± compressed parallel to the invol bracts, often also quadrangular; pappus none; annuals with opposite (or the upper alternate) simple lvs and campanulate or subhemispheric heads. 12, trop. Afr.