Flora of North America species comparison

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

internodes 4-lined at first, then terete.

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

blades narrowly oblong to oblanceolate or linear, (15–)20–45 × 3–7(–10) mm, base articulated, narrowly cuneate to subattenuate, margins subrecurved to revolute, apex rounded to obtuse, midrib with 9–14 pairs of branches.

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.

usually (1–)3–7(+)-flowered from apical node, rarely with flowers from 1–2 proximal nodes.

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.

20–35 mm diam.;

sepals deciduous, not enclosing capsule, (4–)5, elliptic or oblong to obovate, subequal, 4–9 × 1.5–5 mm;

petals (4–)5, golden yellow, obovate to oblong, 8–15 mm;

stamens deciduous, 150–200;

ovary (3–)5(–6)-merous.

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

narrowly ovoid-conic, 7–11 × 4–7 mm.

not carinate, 0.4 mm;

testa finely foveolate-reticulate.

narrowly carinate, 0.7–1.1 mm;

testa subscalariform.

= 18.

= 18.