Flora of North America species comparison

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

internodes 2-winged.

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

blades oblanceolate or narrowly oblong or elliptic to linear, 7–25 × 1–8.5 mm, base not articulated, usually cuneate, sometimes rounded, with glandlike auricles, margins subrecurved, apex rounded to obtuse, midrib with 1–2 pairs of branches.

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

narrowly cylindric to pyramidal, 1–12-flowered from 1–4 nodes, sometimes with branches from to 10 proximal nodes, or branching more elaborate and pseudodichotomous;

pedicels erect in fruit, bracteoles distal.

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.

10–20 mm diam.;

sepals persistent, enclosing capsule, 4, unequal, outer ovate-suborbiculate to narrowly elliptic, 5–12.5 × 2–13 mm, apex subapiculate to obtuse, inner lanceolate, 1–4 × 2 mm, apex acute;

petals 4, bright to pale yellow, obovate to narrowly oblong-elliptic, 6–12 mm;

stamens persistent, 40–50;

ovary 2-merous.

narrowly pyramidal-ovoid, 6 × 2.4 mm.

narrowly compressed-ovoid to cylindric-ellipsoid, 5–9 × 2–4 mm.

not carinate, 0.6–0.8 mm;

testa finely foveolate-reticulate.

not carinate, 0.6–0.8 mm;

testa finely linear-reticulate to linear-foveolate.