Flora of North America species comparison

internodes 2–4-lined.

internodes 4-lined, scabrous-tomentose to pilose.

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.

appressed to ascending, sessile;

blade narrowly ovate or lanceolate to narrowly oblong-elliptic (or proximal oblanceolate), 4–15 × 1.5–7 mm, subcoriaceous, margins recurved, apex acute to obtuse, surfaces scabrous-tomentose to pilose, basal veins 1(–5), midrib with 0–1 pair of branches.

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

cylindric to subcorymbiform, to 30-flowered, branching mostly dichasial.

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.

5–11 mm diam.;

sepals ovate to ovate-lanceolate or obovate, subequal, 2.5–5 × 1.5–2.5 mm, margins setulose-ciliate, apex acute;

petals 5, deep yellow, obovate, 4–7 mm;

stamens (15–)20–40, filaments almost distinct;

styles 1.5–2 mm;

stigmas ± broadly capitate.

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

ovoid to ellipsoid-subglobose, 3.5–5 × 2–3 mm.

carinate, 2–2.7 mm;

testa coarsely reticulate.

0.4–0.6 mm;

testa linear-reticulate.

= 12.