Monographs Details: Eclipta
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, usually white, very short; invol bracts 1–2-seriate, herbaceous or herbaceous-tipped, subequal, or the inner narrower and shorter; receptacle flat or slightly convex, its bracts slender and fragile, or the inner ones wanting; disk-fls perfect and fertile, 4(5)-toothed; style-branches flattened, with short, obtuse, hairy appendage; achenes thick, commonly transversely rugose, 3–4-angled, those of the disk somewhat compressed at right angles to the invol bracts; pappus none or an obscure crown or 2 short awns; branching herbs with opposite simple lvs. 4, mostly tropical.