Monographs Details: Verbesina
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 yellow or white, pistillate or neutral, or rarely wanting and the heads discoid; invol of subequal or slightly imbricate, often somewhat herbaceous bracts; receptacle chaffy, shortly conic to sometimes merely polsterform or nearly flat; disk-fls perfect and fertile; style-branches flattened, with papillate or hairy, acute appendage; achenes ± strongly flattened at right angles to the invol bracts, very often winged; pappus mostly of 2 short to well developed awns, occasionally with a few shorter outer scales or minute awns; leaves simple; our spp. herbs. (Actinomeris, Phaethusa, Pterophyton, Ridan, Ximenesia) 60, New World.