Flora of North America species comparison

internodes 4-angled.

internodes 4-lined at first, then terete.

spreading, sessile or amplexicaul;

blade paler abaxially, ovate, elliptic, or elliptic-oblong (proximal), ovate or suborbiculate to elliptic or lanceolate (mid and distal), 3–27(–40) × 1–15 mm, papery to membranous, margins plane, apex obtuse to rounded, basal veins 3–5, midrib with to 3 pairs of branches.

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.

cylindric, 5–60-flowered, branching mostly dichasial;

bracts linear-subulate.

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

3–5 mm diam.;

sepals lanceolate to linear-lanceolate or elliptic-oblong to oblanceolate, equal or unequal, 2–4.5 × 0.6–1.5 mm, margins sometimes ciliate, not setulose-ciliate, apex usually acute to apiculate, sometimes obtuse to rounded;

petals pale yellow, oblong, 1.7–3.5 mm;

stamens 5–16, scarcely grouped;

styles 0.5 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 ovoid to cylindric-ellipsoid, 2–5 × 1.6–2.4 mm, usually broadest at or near middle.

narrowly ovoid-conic, 7–11 × 4–7 mm.

0.4–0.7 mm;

testa finely linear-scalariform.

narrowly carinate, 0.7–1.1 mm;

testa subscalariform.

= 18.