Asteraceae tribe Heliantheae subtribe Flaveriinae
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.
campanulate, cylindric, obconic, turbinate, or urceolate.
flat to convex, epaleate.
0, or 1–6, pistillate, fertile;
corollas yellow.
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.
persistent, 2–8 in ± 1 series (distinct, linear to oblong, subequal, ± succulent to membranous or scarious).
0 or of 1–2 bractlets.
radiate or discoid, in glomerules or corymbiform to paniculiform arrays.
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).
Asteraceae tribe Heliantheae subtribe Flaveriinae
Genera 3, species 27 (3 genera, 10 species in the flora).
As noted by H. Robinson (1981), traditionally, Flaveria and Sartwellia were treated in Helenieae, Haploësthes in Senecioneae.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Disc florets 18–30(–60); pappi of 20–25+ bristles | Haploësthes |
1. Disc florets 1–15; pappi 0, or coroniform, or wholly or partly of scales | → 2 |
2. Ray florets 3–5; pappi of 5 erose scales alternating with 5 setiform scales or bristles (sometimes all 10 elements basally connate) | Sartwellia |
2. Ray florets 0 or 1; pappi 0, or coroniform, or of 2–4 hyaline scales | Flaveria |
