Flora of North America species comparison

clustered, internodes not lined, with black glands scattered all over.

internodes 4-lined, scabrous-tomentose to pilose.

spreading or ascending, usually sessile, rarely petiolate (to 1 mm);

blade elliptic or oblong to lanceolate or triangular-lanceolate, or oblanceolate, 14–40(–58) × 3–17(–22.5) mm, base cordate to narrowly cuneate, margins plane, apex usually rounded to retuse, rarely acute to obtuse, midrib with 3–5 pairs of branches, tertiary veins densely reticulate toward margins, black glands intramarginal (dense) and laminar (scattered).

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.

subcorymbiform to cylindric, 10–206(–600)-flowered, subsidiary branches narrowly ascending to curved-ascending.

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

8–15 mm diam.;

sepals not imbricate, erect in fruit, lanceolate or oblong-lanceolate to elliptic or ovate-elliptic, subequal, (1.5–)2–4 × 0.8–1.6 mm, apex acute to rounded;

petals pale yellow, oblanceolate to elliptic, 3–6(–9) mm;

stamens (20–)30–60;

anther gland black;

styles 1–4 mm.

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.

ovoid to subglobose, 2.5–6 × 2–3.5(–4) mm, with longitudinal vittae or elongate to ovoid vesicles.

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

not carinate, 0.5–0.7 mm;

testa linear-reticulate.

0.4–0.6 mm;

testa linear-reticulate.

= 14, 16.

= 12.