Flora of North America species comparison

internodes narrowly 4-winged at first, then 2-lined.

internodes 6-lined at first, soon 2-winged, then terete, not glaucous.

blades oblong to elliptic-oblong, 20–40 × 12–20 mm, base not articulated, broadly cuneate, margins usually plane, rarely recurved, apex rounded to retuse, midrib with 6 pairs of branches.

blades linear-subulate, 8–20 × 0.7–1 mm, not glaucous, base articulated, parallel, margins revolute, apex sometimes slightly broadened, midrib unbranched.

terminal (1–)3–5(–8)-flowered, narrowly branched.

rounded-pyramidal to corymbiform, sometimes intercalary as result of resumed vegetative growth, (3–)7–32-flowered, sometimes with single flowers or 3–5-flowered dichasia from to 3 proximal nodes.

15 mm diam.;

sepals tardily deciduous, not enclosing capsule, 5, spatulate to elliptic or ovate, unequal, 3–5 × 1.5–2.3 mm;

petals 5, coppery yellow, oblong, 8–10 mm length 2 times sepals;

stamens deciduous, 60–80;

ovary 3-merous, placentation incompletely axile.

13–16 mm diam.;

sepals deciduous, not enclosing capsule, 5, linear-subulate, unequal, (3–)4.5–8(–10) × 0.5 mm, not glaucous;

petals 5, bright yellow, obovate-spatulate, 6–9 mm;

stamens deciduous, 70–100;

ovary 3-merous;

styles 2.5–4 mm.

cylindric-conic, 6–15 × 4.5–8 mm.

± narrowly ovoid-conic to ovoid-ellipsoid, 5.5 × 2.5–3 mm.

scarcely carinate, 1.8–2 mm;

testa finely scalariform-reticulate.

not carinate, 0.4 mm;

testa finely foveolate-reticulate.

= 18.