Flora of North America species comparison

internodes 4-lined.

ascending to appressed, sessile;

blade usually lanceolate, rarely elliptic to ovate, 5–20(–24) × 5–15 mm, shorter than internodes, smaller distally, leathery, margins plane, apex acute, gland-dotted, less conspicuously adaxially, basal veins 1–5, midrib with 2–3 pairs of branches.

corymbiform, to 30-flowered, branching mostly dichasial.

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

5–13 mm diam.;

sepals lanceolate, unequal, 3.5–4.2(–4.8) mm, margins sometimes ciliate, not setulose-ciliate, apex acute to subacuminate;

petals orange-yellow, ± obovate, 5–10 mm;

stamens 50–80, filaments basally connate;

styles 2–4 mm;

stigmas clavate.

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.

ovoid, 3–4.5 mm.

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

0.4–0.7 mm;

testa reticulate.

slightly carinate, 0.6–0.7 mm;

testa scalariform.

= 18.