Flora of North America species comparison

internodes 2–4-lined.

blades narrowly elliptic or narrowly oblong to linear, 30–70 × 3–15 mm, base not articulated, narrowly cuneate to linear, margins plane to revolute, apex subacute to rounded, midrib with 0–4 pairs of branches.

rounded-corymbiform, 7–70-flowered, narrowly branched, sometimes with dichasia or branches from to 8 proximal nodes.

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

10–15 mm diam.;

sepals persistent, not enclosing capsule, 5, broadly ovate to oblong-elliptic, ± unequal, 2.5–5 × 1.5–3 mm;

petals 5, bright yellow, oblanceolate-elliptic to elliptic, 5–9 mm;

stamens persistent, 45–85;

ovary 3-merous, placentation parietal.

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.

broadly ovoid to depressed-globose, 4.5–8 × 4–7 mm.

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

carinate, 2–2.7 mm;

testa coarsely reticulate.

slightly carinate, 0.6–0.7 mm;

testa scalariform.

= 18.