Flora of North America species comparison

internodes 4-angled.

internodes (2–)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 oblong-ovate to ovate or triangular-ovate, 5–35 × 4–15 mm, base articulated, cordate-amplexicaul, margins subrecurved, apex apiculate or obtuse to rounded, midrib with 1 pair of branches.

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

terminal, 1(–3)-flowered, branching from apical node pseudodichotomous, sometimes with relatively short branches from to 3 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.

20–30 mm diam.;

sepals persistent, enclosing capsule, 4, unequal, outer broadly ovate, 7–15 × 5.5–10 mm, apex subapiculate to obtuse, inner narrowly lanceolate, 7–15 × 2–3 mm, apex acute;

petals 4, bright yellow, obovate-oblong, 10–15 mm;

stamens persistent, 100;

ovary 3-merous.

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

broadly ellipsoid-ovoid to subglobose, 5–6 × 3.5–4 mm.

0.5–0.6 mm;

testa linear-scalariform.

not carinate, 0.7 mm;

testa shallowly scalariform.

= 16.

= 18.