Flora of North America species comparison

internodes 4-lined.

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.

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

rounded-corymbiform, 13–60-flowered, narrowly branched, without subsidiary branches.

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.

10–15 mm diam.;

sepals persistent, not enclosing capsule, 5, ovate-lanceolate to lanceolate, subequal, (2–)4–7 × 1–1.5 mm;

petals 5, bright yellow, obovate-oblanceolate, 6–8 mm;

stamens persistent, 60–80;

ovary 3-merous, placentation parietal.

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

ellipsoid to ovoid-ellipsoid, 3.5–6 × 2–4 mm.

0.4–0.8 mm;

testa markedly ribbed-scalariform.

slightly carinate, 0.6–0.7 mm;

testa scalariform.

= 24.

= 18.