187m.15. Asteraceae Martinov (tribe Heliantheae) subtribe Flaveriinae Lessing, Syn. Gen. Compos. 235. 1832.
Annuals, perennials, or subshrubs, 10–80 cm (often ± succulent). Leaves cauline; opposite; petiolate or sessile; blades (1- or 3-nerved) oblong, oblong-ovate, lanceolate, linear, or filiform, margins entire or toothed, faces glabrous, glabrescent, or puberulent. Heads radiate or discoid, in glomerules or corymbiform to paniculiform arrays. Calyculi 0 or of 1–2 bractlets. Involucres campanulate, cylindric, obconic, turbinate, or urceolate. Phyllaries persistent, 2–8 in ± 1 series (distinct, linear to oblong, subequal, ± succulent to membranous or scarious). Receptacles flat to convex, epaleate. Ray florets 0, or 1–6, pistillate, fertile; corollas yellow. Disc florets 1–60[–100+], bisexual, fertile; corollas yellow, tubes shorter than or about equaling the funnelform to campanulate throats, lobes 5, deltate; anther thecae pale; stigmatic papillae in 2 lines. Cypselae cylindric to clavate or ± compresssed, linear-oblong to oblanceolate, 10–15-ribbed, glabrous or hairy; pappi 0, or persistent, coroniform, or of 2–5 ovate, scarious scales, or of 20–25+ unequal bristles, or of 5 scales plus 5 bristles (all in 1 series, sometimes connate).
Genera 3, species 27 (3 genera, 10 species in the flora): mostly subtropical, tropical, and warm-temperate New World.
As noted by H. Robinson (1981), traditionally, Flaveria and Sartwellia were treated in Helenieae, Haploësthes in Senecioneae.