Flora of North America species comparison

internodes 4-angled.

internodes 4-lined at first, then 2-lined to terete.

spreading, sessile or subamplexicaul;

blade ovate or orbiculate to elliptic or oblanceolate (proximal) or oblong (distal), 3–13 × 1.5–8.5 mm, papery to membranous, margins plane, apex rounded, basal veins 3–5(–7), distally looped, midrib unbranched.

blades linear-elliptic or linear-oblong to linear, 20–35 × 3–5 mm (main stem), base not articulated, narrowly cuneate to rounded, margins recurved to revolute, apex obtuse to acute, midrib unbranched.

loosely corymbiform, 1–14-flowered, branching mostly dichasial.

obconic, (1–)3–20-flowered, ± widely branched, sometimes with single flowers at immediately proximal nodes.

3–5(–8) mm diam.;

sepals usually narrowly elliptic-oblong to oblanceolate-spatulate, rarely obovate, unequal, 2–4 × 0.9–2 mm, margins sometimes ciliate, not setulose-ciliate, apex subacute to rounded;

petals golden yellow to salmon-orange, oblanceolate, (1.7–)3.5–5 mm;

stamens (5–)12–15(–25), separate or obscurely 3-fascicled;

styles 0.5–2 mm;

stigmas scarcely capitate.

15–20 mm diam.;

sepals persistent, not enclosing capsule, 5, ovate-lanceolate to lanceolate, ± foliaceous, unequal, 5–8(–15) × 2–3(–8)mm;

petals 5, yellow, curved-dolabriform, 10–13 mm;

stamens deciduous, 120–200;

ovary 3-merous.

ellipsoid to cylindric or subglobose, 2.5–5 × 1.7–2.5 mm.

ovoid-conic, rostrate, 4–9 × 3–4 mm.

0.5–0.6 mm;

testa linear-scalariform.

carinate, 1.5–1.8 mm;

testa reticulate-scalariform.

= 16.

= 18.