Flora of North America species comparison

internodes 4-lined.

internodes narrowly 4-winged at first, then terete.

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.

blades ovate-lanceolate or elliptic to linear-oblong, 30–70 × 7–25 mm, base not articulated, cuneate to subcordate, margins plane, apex obtuse to rounded, midrib with to 6 pairs of branches.

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

corymbiform to rounded-pyramidal, 7–45-flowered, narrowly branched, sometimes with 1–7(–40)-flowered dichasia from 1–3 proximal nodes.

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.

15–20 mm diam.;

sepals deciduous, not enclosing capsule, 5, oblanceolate-spatulate to narrowly triangular, unequal to subequal, 2–5 × 1–1.5 mm;

petals 5, pale or coppery yellow, oblanceolate-oblong to elliptic-oblong, 6–8(–10) × 3–4 mm, length 2–3 times sepals;

stamens persistent, 80;

ovary 3(–4)-merous, placentation incompletely axile.

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

broadly ellipsoid to ovoid-globose, 3.5–7 × 3–5 mm.

0.5–0.6(–0.7) mm;

testa obscurely linear-reticulate to irregularly reticulate.

markedly carinate, 1.5–2 mm;

testa ± scalariform-reticulate.

= 24.

= 18.