Flora of North America species comparison

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

internodes 6-lined at first, becoming 4-lined, then terete.

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).

blades linear-subulate, 4–11 × 0.4–0.8 mm, base articulated, persistent, parallel or slightly expanded, margins revolute, apex rounded with ± prominent hydathode to long-acuminate, midrib unbranched.

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

± narrowly cylindric, 1–7-flowered, with 1(–3)-flowered dichasia from to 4 proximal nodes, rarely with 1 pair of flowering branches;

flowers sessile or nearly so.

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.

10–14 mm diam.;

sepals deciduous, not enclosing capsule, 5, linear-subulate, unequal, 2–4 × 0.4–0.5 mm;

petals 5, bright yellow, oblanceolate-oblong to obovate, 5–10 mm;

stamens deciduous, 50–90;

ovary 3-merous.

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

narrowly (sub-)cylindric, (4–)5.7–9.5 × 1.5–2 mm.

not carinate, 0.8–1.1 mm;

testa linear-reticulate.

scarcely carinate, 0.5 mm;

testa coarsely reticulate.

= 16.

= 18.