Flora of North America species comparison

internodes (4-) or 6-lined at first, then terete.

internodes 4-lined at first, soon 4-angled, then terete, not glaucous.

blades linear-subulate, 13–25 × 0.5–0.8 mm, base articulated, parallel, margins revolute, apex rounded to retuse, midrib unbranched.

blades linear-subulate, 8–25 × 0.5–0.7 mm, not glaucous, base articulated, parallel or slightly expanded, margins revolute, apex acute, midrib unbranched.

narrowly pyramidal, 1–3-flowered, with 1–3(–5)-flowered dichasia from to 5 proximal nodes, without additional flowering branches;

pedicels 0.5 mm.

shortly cylindric, 1–3-flowered, often with single flowers or triads from 1–2 proximal nodes.

12–14 mm diam.;

sepals deciduous, not enclosing capsule, 5, linear-subulate, unequal, (3–)4.5–7 × 0.5–0.8 mm;

petals 5, golden yellow, oblanceolate-oblong, 5–7.5 mm;

stamens deciduous, 100;

ovary 3-merous.

12–15 mm diam.;

sepals deciduous, not enclosing capsule, 5, linear-subulate, unequal, 5–7 × 0.5 mm, not glaucous;

petals 5, bright yellow, oblong-spatulate, 7–9 mm;

stamens deciduous, 75;

ovary 3-merous;

styles 2.5–4 mm.

ovoid, 3–4 × 2–2.5 mm.

narrowly pyramidal-ovoid, 6 × 2.4 mm.

carinate, 0.7 mm;

testa not seen.

not carinate, 0.6–0.8 mm;

testa finely foveolate-reticulate.