Flora of North America species comparison

internodes 4-lined.

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.

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

rounded-corymbiform, 13–60-flowered, narrowly branched, without subsidiary branches.

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.

10–15 mm diam.;

sepals persistent, not enclosing capsule, 5, ovate-lanceolate to lanceolate, subequal, (2–)4–7 × 1–1.5 mm;

petals 5, bright yellow, obovate-oblanceolate, 6–8 mm;

stamens persistent, 60–80;

ovary 3-merous, placentation parietal.

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

ellipsoid to ovoid-ellipsoid, 3.5–6 × 2–4 mm.

0.5–0.6(–0.7) mm;

testa obscurely linear-reticulate to irregularly reticulate.

slightly carinate, 0.6–0.7 mm;

testa scalariform.

= 24.

= 18.