Flora of North America species comparison

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

internodes 4-angled.

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.

erect or spreading, sessile or subsessile;

blade linear to oblanceolate-linear or (proximal) oblanceolate to obovate, 6–55 × 0.5–5.5 mm, papery to membranous, margins plane, apex rounded, basal or near-basal veins 1–3(–5), midrib with 1–4 pairs of branches.

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

corymbiform to cylindric, usually diffuse, 1–35-flowered, branching mostly dichasial.

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.

5–6 mm diam.;

sepals linear-lanceolate to lanceolate, equal, 2.5–4.5 × 0.8–1 mm, margins sometimes ciliate, not setulose-ciliate, apex acute to acuminate;

petals golden yellow, sometimes red-veined, narrowly obovate to elliptic, 2.5–4 mm;

stamens 12–25, obscurely 3–5-fascicled;

styles 0.5–0.8 mm;

stigmas broadly capitate.

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

narrowly conic to conic-cylindric, 4–6 × 1.5–3 mm, broadest proximal to middle.

narrowly carinate, 1–1.6 mm;

testa coarsely reticulate-sulcate.

0.5–0.7 mm;

testa finely linear-scalariform.

= 18.

= 16.