Flora of North America species comparison

petiole winged, 1–4 mm, ciliate on margins, or hairy;

blade obovate to oblanceolate, 4–15 × 0.7–8(–20) mm, base attenuate-cuneate, decurrent onto petiole, apex acute, obtuse, or rounded, surfaces rugose, glabrous or hairy.

2–4(–7)-flowered;

bracts ovate, membranous.

0.1–0.6 mm.

sepals pale green or yellow, 0.8–1.2 mm, apex acute;

corolla yellow, whitish, or green (pale yellowish green), 3.5–4.5 mm, lobes recurved, greenish, rounded, 0.5 mm, glabrous;

stamens 1–2 mm;

anthers reddish, becoming yellow, 0.6–0.7 mm, horns 0.1–0.2 mm.

black-purple, 6–9 mm diam.

2.7–4.6 × 2–3.6 mm.

= 26, 28.