Flora of North America species comparison

internodes 4-lined at first, soon 4-angled, then terete, dull silvery, glaucous.

internodes 2–4-lined.

blades linear-subulate to acicular, (9–)12–17 × 0.5–0.8 mm, glaucous, base articulated, parallel or almost so, margins revolute, apex obtuse to rounded, midrib unbranched.

blades narrowly elliptic or narrowly oblong to linear, 30–70 × 3–15 mm, base not articulated, narrowly cuneate to linear, margins plane to revolute, apex subacute to rounded, midrib with 0–4 pairs of branches.

narrowly cylindric, 1–3-flowered, usually with paired flowers or triads from to 9 proximal nodes.

rounded-corymbiform, 7–70-flowered, narrowly branched, sometimes with dichasia or branches from to 8 proximal nodes.

20 mm diam.;

sepals deciduous, not enclosing capsule, 5, linear-subulate, subequal, 7–8 × 0.5–0.8 mm, glaucous;

petals 5, bright yellow, obovate-spatulate, 10–12 mm;

stamens deciduous, 170–220;

ovary 3-merous;

styles 5 mm.

10–15 mm diam.;

sepals persistent, not enclosing capsule, 5, broadly ovate to oblong-elliptic, ± unequal, 2.5–5 × 1.5–3 mm;

petals 5, bright yellow, oblanceolate-elliptic to elliptic, 5–9 mm;

stamens persistent, 45–85;

ovary 3-merous, placentation parietal.

narrowly ovoid to ellipsoid, 6–7 × 2.5–3.5 mm.

broadly ovoid to depressed-globose, 4.5–8 × 4–7 mm.

narrowly carinate, 1–1.6 mm;

testa coarsely reticulate-sulcate.

carinate, 2–2.7 mm;

testa coarsely reticulate.

= 18.