Flora of North America species comparison

internodes 4-angled.

internodes 4-lined.

spreading, sessile or amplexicaul;

blade usually ovate-triangular to broadly ovate, rarely oblong (mid and distal blades lanceolate-deltate), 5–25 × 3–12 mm, papery to membranous, margins plane, apex usually subacute, basal veins (3–)5, midrib usually with 1–2 pairs of branches.

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.

laxly corymbiform to cylindric, (1–)5–65-flowered, branching mostly dichasial.

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

4.5–7 mm diam.;

sepals lanceolate to narrowly ovate, equal, 3–5 × 0.8–1.2 mm, margins sometimes ciliate, not setulose-ciliate, apex acute to acuminate;

petals bright yellow, oblanceolate, 2–4 mm;

stamens 10–14, scarcely grouped;

styles 0.5–0.7 mm;

stigmas broadly 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.

narrowly conic-ellipsoid, 3–5 × 1.5–2 mm, usually broadest at or near middle.

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

0.5–0.6 mm;

testa finely linear-scalariform.

0.4–0.8 mm;

testa markedly ribbed-scalariform.

= 16.

= 24.