Gamochaeta coarctata
elegant cudweed, gray everlasting
decumbent-ascending, white-pannose (tomentum usually sheath-like).
basal and cauline, basal present (in rosettes) at flowering, blades spatulate to oblanceolate-obovate, (1.5–)3–8(–12) cm × 6–15(–22) mm (gradually or little smaller distally, slightly succulent, margins often crenulate on drying), faces bicolor, abaxial closely white-pannose, adaxial glabrous or glabrate.
cylindro-campanulate, 2.5–3 mm, bases glabrous.
bisexual 2–3; all corollas usually purplish distally.
in 4–5 series, outer (purplish or rosy) elliptic-obovate to broadly ovate-elliptic, lengths 1/3–1/4 inner, apices rounded to obtuse, inner oblong, laminae brown-hyaline, apices rounded to obtuse or blunt, apiculate.
initially usually in dense, continuous spiciform arrays 2–20 cm × 10–14 mm (pressed), later branched, interrupted.
(tan) 0.5–0.6 mm.
annuals or biennials, 15–35(–50) cm; fibrous-rooted.
= 28, 40.
Gamochaeta coarctata
Gamochaeta coarctata is native to South America and is also introduced in Mexico. R. K. Godfrey (1958) identified specimens of G. coarctata as Gnaphalium spicatum Lamarck. Some specimens from the flora area were misidentified by G. L. Nesom (1990f) as Gamochaeta americana (Miller) Weddell, which was described from Jamaica; it is widespread in Central America and Mexico, and has not been observed in the flora area.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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