Flora of North America species comparison

internodes 4-lined at first, soon 2-lined, with black glands on or near lines.

spreading, sessile;

blade ovate to oblong or lanceolate, 33–65 × 15–27 mm, base cordate to truncate or broadly cuneate, margins plane, apex obtuse to rounded, midrib with 4–5 pairs of branches, tertiary veins densely reticulate toward margins, black glands intramarginal (dense) and, sometimes, laminar (scattered).

subcorymbiform, (2–)5–14(–22)-flowered, subsidiary branches sometimes narrowly ascending or curved-ascending.

20–25(–30) mm diam.;

sepals not imbricate, erect in fruit, lanceolate, subequal, 5–7.5(–11) × 1–3 mm, apex acute;

petals golden yellow, narrowly obovate, 11–18 mm;

stamens 50–90(–103);

anther gland black;

styles 5.6–12 mm.

broadly ovoid, 5–8 × 3.5–5 mm, with longitudinal vittae.

not carinate, 0.8–1.1 mm;

testa linear-reticulate.

= 16.