Flora of North America species comparison

internodes 4-angled.

internodes 4-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.

appressed, sessile;

blade narrowly triangular-subulate to linear-subulate, scalelike, 1–4 × 0.4–0.6 mm, subcoriaceous to chartaceous, margins incurved, apex obtuse to rounded, basal vein 1, midrib unbranched.

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

usually pyramidal, 1–24-flowered, branching mostly monochasial.

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.

3–5 mm diam.;

sepals lanceolate to narrowly oblong or linear-lanceolate, unequal, 1.5–2.5 × 0.4–0.8 mm, apex acute;

petals orange-yellow to golden yellow, oblong, 2–4 mm;

stamens 5–11, 5 separate or obscurely 5-grouped;

styles 0.8–1.2 mm;

stigmas broadly capitate.

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

narrowly cylindric-conic, 4–5 × 1–1.2 mm, length 2–2.7 times sepals.

0.5–0.6 mm;

testa linear-scalariform.

0.4–0.8 mm;

testa markedly ribbed-scalariform.

= 16.

= 24.