Erechtites Raf.
Annual or perennial herbs. Lvs simple, subentire to 1-pinnatifid, alternate. Capitula in panicles; involucral bracts in 1 row, with supplementary bracts subtending involucre. Receptacle ± flat; scales 0. Outer florets ♀, not ligulate, filiform; inner florets ⚥. Achenes all similar, ± cylindric, with c. 10 prominent ribs, and short antrorse hairs between ribs; pappus simple, sometimes caducous.
Key
5 spp., N., C., and S. America. Naturalised spp. 2.
Erechtites was revised by Belcher, R. O., Ann. Missouri Bot. Gard. 43 : 1-85 (1956), who referred Australasian spp., previously included within Erechtites, to Senecio because they lack the style-arm apex prolonged into a tuft of fused papillose hairs which characterises the American spp.
