Flora of North America species comparison

internodes 4-angled.

internodes 4–6-lined at first, soon 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 elliptic, 15–26 × 5–8(–11) mm, base not articulated, cuneate to subrounded, with glandlike auricles, margins subrecurved to subincrassate, apex obtuse to acute, midrib with to 4 pairs of branches.

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

1-flowered, branching from apical node repeatedly pseudodichotomous, without branches from 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, enclosing capsule, 4, unequal, outer broadly ovate, 8–17 × 5–9 mm, apex acute to subacuminate, inner linear-lanceolate, 5–6 × 0.6–1.2 mm, apex acuminate;

petals 4, bright yellow, obovate, 10–18 mm;

stamens persistent, 70–80;

ovary 3–4-merous.

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

narrowly pyramidal-ovoid, 5–8 × 3–4 mm.

0.5–0.6 mm;

testa linear-scalariform.

not carinate, 0.8 mm;

testa reticulate.

= 16.