Flora of North America species comparison

internodes 4-angled, apical internode shorter than adjacent one or almost absent.

internodes 4-lined.

spreading, sessile;

blade (concolor), broadly to narrowly oblong or elliptic to oblanceolate or round, 5–15 × 2–5 mm, papery to membranous, margins plane, apex rounded, basal veins 3–5, midrib branched or not.

ascending to deflexed, sessile;

blade narrowly oblong-elliptic (proximal) or lanceolate to linear-lanceolate, 10–30 × 3–8 mm, mostly longer than internodes, not or scarcely smaller distally, leathery, margins plane, apex acute, basal or near-basal veins 1–3(–5), midrib with 0–2 pairs of branches.

cylindric to rounded-pyramidal, 1–13-flowered, branching mostly dichasial;

bracts not linear-subulate.

broadly pyramidal to subcorymbiform, 1(–30)-flowered, branching mostly dichasial.

3–5 mm diam.;

sepals usually lanceolate to narrowly oblong, rarely oblanceolate, equal, 2.5 × 0.8–1 mm, margins sometimes ciliate, not setulose-ciliate, apex rounded;

petals pale yellow, oblong, 1.7–3.5 mm;

stamens 5–16, scarcely grouped;

styles 0.5 mm;

stigmas broadly capitate.

4–10 mm diam.;

sepals lanceolate, usually unequal, 3–5 × 0.8–1 mm, margins sometimes ciliate, not setulose-ciliate, apex acute to acuminate;

petals orange-yellow, obovate, 6–10 mm;

stamens 50–80, irregularly grouped;

styles 2–4 mm;

stigmas capitate.

narrowly ovoid to cylindric-ellipsoid, 4–5 × 2–2.5 mm, usually broadest at or near middle.

ellipsoid to rostrate-subglobose, 3–4.5 × 2–2.5 mm.

0.4–0.7 mm;

testa finely linear-scalariform.

0.5–0.6(–0.7) mm;

testa obscurely linear-reticulate to irregularly reticulate.

= 16 [“18”].

= 24.