Flora of North America species comparison

internodes 4-lined.

internodes 4-lined at first, then terete.

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.

blades narrowly oblong to oblanceolate or linear, (15–)20–45 × 3–7(–10) mm, base articulated, narrowly cuneate to subattenuate, margins subrecurved to revolute, apex rounded to obtuse, midrib with 9–14 pairs of branches.

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

usually (1–)3–7(+)-flowered from apical node, rarely with flowers from 1–2 proximal nodes.

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.

20–35 mm diam.;

sepals deciduous, not enclosing capsule, (4–)5, elliptic or oblong to obovate, subequal, 4–9 × 1.5–5 mm;

petals (4–)5, golden yellow, obovate to oblong, 8–15 mm;

stamens deciduous, 150–200;

ovary (3–)5(–6)-merous.

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

narrowly ovoid-conic, 7–11 × 4–7 mm.

0.4–0.8 mm;

testa markedly ribbed-scalariform.

narrowly carinate, 0.7–1.1 mm;

testa subscalariform.

= 24.

= 18.