Flora of North America species comparison

1.7–12 × 0.3–3.3 cm;

petiole not winged, 1.5–3 cm;

blade very narrowly elliptic, base attenuate, margins irregularly pinnatifid, apex acute to long-acuminate.

opening near sunrise;

floral tube 1.8–2(–2.5) mm, glabrate to very sparsely pilose inside near base;

sepals 3–6(–7.5) mm;

petals yellow, 5–7(–9) mm; episepalous staminal filaments 2.8–4(–5) mm, epipetalous ones 1.5–1.8(–2) mm, anthers 0.9–1.3 mm;

sterile prolongation of ovary 4–15 mm, style 3–6.5 mm, sparsely pilose near base to glabrate, stigma surrounded by anthers of longer stamens at anthesis.

subterete, cylindric-ovoid, often slightly asymmetric, 8–17 × 2–5 mm, walls thick, evidently distended by seeds;

sessile.

tan to brown, curved-cylindric, 1.3–1.8 × 0.7–0.9 mm, pitted in rows.

= 14.