Helianthus praecox subsp. runyonii (Heiser) Heiser
Family: Asteraceae
[Helianthus debilis subsp. runyonii Heiser,  more...]
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Stems erect, branches ascending, moderately hirsute. Leaves (larger) 3-7.5(-8) cm. Peduncles 20-30(-35) cm. Phyllary apices short-attenuate. Paleae: middle teeth white-villous ('bearded'). Rays 11-13(-14). 2n = 34.

Flowering spring-fall. Coastal prairies; 0-20+ m; Tex.