Flora of North America species comparison

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

internodes 4-angled.

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).

spreading, sessile or distal subamplexicaul;

blade lanceolate to narrowly oblong-elliptic or (proximal) oblanceolate, 10–45 × (2–)6–12 mm, papery to membranous, margins plane, apex acute to rounded, basal or near-basal veins (3–)5–7, midrib with to 4 pairs of branches.

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

corymbiform to cylindric, 3–30-flowered, usually compact, 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.

6–7 mm diam.;

sepals lanceolate to narrowly elliptic, equal, 3.5–6.5 × 0.8–1.5 mm, margins sometimes ciliate, not setulose-ciliate, apex acute;

petals golden yellow, sometimes red-veined, oblanceolate, 3.5–6 mm;

stamens 12–21, obscurely 5-fascicled;

styles 0.6–1 mm;

stigmas broadly capitate.

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

narrowly conic-ellipsoid, 4–8 × 2.5–3.5 mm, broadest proximal to middle.

not carinate, 0.5–0.7 mm;

testa linear-reticulate.

0.5–0.7 mm;

testa finely linear-scalariform.

= 14, 16.

= 16.