Flora of North America species comparison

internodes 4-lined at first, then terete.

internodes 4-lined at first, becoming 2-winged, then terete.

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.

blades linear or linear-subulate, 9–26 × 0.5–1.5 mm, base articulated, narrowly cuneate or parallel, margins revolute, apex rounded or acute to long-acuminate with prominent hydathode, midrib unbranched.

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

narrowly to broadly cylindric, 3–15-flowered, sometimes with 1–3(–7)-flowered dichasia from to 6 proximal nodes, sometimes with 1–2 pairs of additional flowering branches.

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.

10–18 mm diam.;

sepals deciduous, not enclosing capsule, 5, linear-subulate, unequal to subequal, 3.5–7 × 0.4–0.8 mm;

petals 5, yellow, obovate to elliptic-lanceolate, (5–)6–10 mm;

stamens deciduous, 50–80(–115);

ovary 3-merous;

styles shorter than ovaries.

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

narrowly conic to cylindric, (4.5–)5–7 × (1.3–)2–3 mm.

1.5–2 mm, narrowly winged;

testa linear-reticulate to linear-foveolate.

scarcely carinate, 0.5 mm;

testa finely reticulate.

= 40.