Flaveria linearis
narrowleaf yellowtops
erect.
sessile;
blades linear, 50–100(–130) × 1–4(–15) mm, ± connate, margins entire or spinulose-serrulate.
oblong-angular, 3.3–4.5 mm.
0 or 1;
laminae yellow, oval to obovate-spatulate, 2–3 mm.
(2–)5–7(–8);
corolla tubes 0.8–1.2 mm, throats basally tubular, becoming funnelform-campanulate apically, 1–1.5 mm.
5(–6), linear or oblong.
of 1–3 linear bractlets 1–2.5 mm.
10–150+, in clusters in corymbiform-paniculiform arrays.
linear, 1.2–1.8 mm;
pappi 0.
= 36.
Flaveria linearis
Flaveria linearis is variable; it typically has linear leaves, calyculi of relatively short, linear bractlets, and oblong-angular involucres. The heads are relatively small with 5–8 florets, and throats of the disc corollas are tubular at the base, abruptly expanding distally to become funnelform-campanulate. Plants of this species, the most common Flaveria in Florida, occur throughout most of the Florida peninsula, often near the coast.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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