Flora of North America species comparison

internodes 4-angled.

internodes narrowly 4-winged at first, then 2-lined.

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 oblong to elliptic-oblong, 20–40 × 12–20 mm, base not articulated, broadly cuneate, margins usually plane, rarely recurved, apex rounded to retuse, midrib with 6 pairs of branches.

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

terminal (1–)3–5(–8)-flowered, narrowly branched.

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 mm diam.;

sepals tardily deciduous, not enclosing capsule, 5, spatulate to elliptic or ovate, unequal, 3–5 × 1.5–2.3 mm;

petals 5, coppery yellow, oblong, 8–10 mm length 2 times sepals;

stamens deciduous, 60–80;

ovary 3-merous, placentation incompletely axile.

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

cylindric-conic, 6–15 × 4.5–8 mm.

0.5–0.6 mm;

testa linear-scalariform.

scarcely carinate, 1.8–2 mm;

testa finely scalariform-reticulate.

= 16.