Flora of North America species comparison

internodes 2-winged.

blades usually oblanceolate, 10–20 × 3–6 mm, broadest beyond middle.

blades oblanceolate or narrowly oblong or elliptic to linear, 7–25 × 1–8.5 mm, base not articulated, usually cuneate, sometimes rounded, with glandlike auricles, margins subrecurved, apex rounded to obtuse, midrib with 1–2 pairs of branches.

branching dichasial (1–3-flowered) or lateral.

narrowly cylindric to pyramidal, 1–12-flowered from 1–4 nodes, sometimes with branches from to 10 proximal nodes, or branching more elaborate and pseudodichotomous;

pedicels erect in fruit, bracteoles distal.

10–20 mm diam.;

sepals persistent, enclosing capsule, 4, unequal, outer ovate-suborbiculate to narrowly elliptic, 5–12.5 × 2–13 mm, apex subapiculate to obtuse, inner lanceolate, 1–4 × 2 mm, apex acute;

petals 4, bright to pale yellow, obovate to narrowly oblong-elliptic, 6–12 mm;

stamens persistent, 40–50;

ovary 2-merous.

narrowly compressed-ovoid to cylindric-ellipsoid, 5–9 × 2–4 mm.

not carinate, 0.6–0.8 mm;

testa finely linear-reticulate to linear-foveolate.

= 18.