Flora of North America species comparison

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

internodes 6-lined at first, soon 4-lined, then terete.

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 oblong-elliptic or oblanceolate to linear, 15–32(–37) × 1–7 mm, base articulated, attenuate, margins recurved to revolute, apex rounded to acute, midrib obscurely branched.

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

narrowly cylindric, 3–15-flowered from apical node, with (1–)3–5-flowered dichasia from 3–4 proximal nodes, sometimes with additional flowering branches.

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.

9–14 mm diam.;

sepals deciduous, not enclosing capsule, 5, oblanceolate-spatulate to linear, subequal or equal, 3.5–6.5 × 0.5–1.5 mm;

petals 5, bright yellow, obovate-oblanceolate, 5–9 mm;

stamens deciduous, 60–120;

ovary 3-merous, placentation parietal.

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

narrowly ovoid-conic, 4.5–6 × 2.5–3.5 mm.

narrowly carinate, 1–1.6 mm;

testa coarsely reticulate-sulcate.

narrowly carinate, 0.7–0.8 mm;

testa finely reticulate.

= 18.

= 18.