Flora of North America species comparison

internodes 4-angled.

apical internode usually longer than adjacent one.

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 broadly ovate or broadly oblong-ovate to suborbiculate.

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

bracts linear-subulate.

branching from 1–4(–6) nodes, branches diffuse and repeatedly monochasial distally.

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.

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

0.4–0.7 mm;

testa finely linear-scalariform.

± imbricate, broader beyond middle.