Flora of North America species comparison

internodes 4-lined.

internodes 4-lined at first, then terete.

blades oblong-ovate to triangular-lanceolate, 8–40 × (5–)7–20 mm, base articulated, subcordate-amplexicaul, margins recurved, apex rounded, midrib with 3 or 4 pairs of branches.

spreading, sessile;

blade narrowly elliptic to narrowly elliptic-oblong, 20–70 × 5–15 mm, (proximal usually narrower), base narrowly cuneate to subangustate, margins plane, apex acute to apiculate-obtuse, midrib with 8–12 pairs of branches, tertiary veins densely reticulate toward margins.

hemispheric to ± flat-topped, 7–30-flowered, widely branched, with flowers or flowering branches from to 3 proximal nodes.

broadly rounded-pyramidal to broadly cylindric, to 30-flowered.

15–25 mm diam.;

sepals persistent, not enclosing capsule, 5, ovate to lanceolate, unequal to subequal, 5–8 × 2–4.5 mm;

petals 5, bright yellow, obovate to oblong-lanceolate, 8–15 mm;

stamens deciduous, 200;

ovary 3(–4)-merous.

sepals lanceolate, unequal, 3–4.5 × 1–2.2 mm;

petals bright yellow, not red-tinged, oblanceolate-unguiculate, 12–17 mm;

anther gland yellow to orange;

styles widely spreading, 8–14 mm.

pyramidal-ovoid, 5–6 × 3–4 mm.

pyramidal-ovoid to ovoid-ellipsoid, 9–12 × 7–8 mm.

narrowly carinate, 1 mm;

testa shallowly linear-reticulate.

1.5–2 mm, narrowly winged;

testa linear-reticulate to linear-foveolate.

= 18.

= 40.