Flora of North America species comparison

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

internodes 4-lined at first, then 2-lined to terete.

usually ascending, sometimes spreading, sessile;

blade usually ovate-lanceolate to triangular-lanceolate or narrowly elliptic, rarely ovate, 18–45 × 6–16(–20) mm, base cordate to rounded, margins plane, apex usually acute, rarely obtuse to rounded, midrib with 3–4 pairs of branches, tertiary veins densely reticulate toward margins, black glands intramarginal (dense) and laminar (scattered).

blades narrowly oblong to narrowly elliptic-oblanceolate, 30–70 × 6–15 mm, base articulated, attenuate to narrowly cuneate, margins plane to recurved, apex rounded-apiculate to acute, midrib with 10–16 pairs of branches.

subcorymbiform to broadly pyramidal, 16–164(–280)-flowered, subsidiary branches ascending to widely spreading.

cylindric, (1–)3–7(–9)-flowered from apical node, with paired single flowers or triads or 1–3(–7)-flowered branches from 2+ proximal nodes.

10–20 mm diam.;

sepals not imbricate, erect in fruit, lanceolate to ovate or elliptic-oblong, subequal, (3–)3.7–4.9(–6) mm, apex acute;

petals yellow, usually obovate, rarely elliptic, 6–14 mm;

stamens 38–61;

anther gland amber or pellucid;

styles 5.4–8.5 mm.

15–30 mm diam.;

sepals deciduous, not enclosing capsule, 5, elliptic to obovate or oblanceolate-spatulate, unequal or subequal, 4–8 × 1.5–4 mm;

petals 5, golden yellow, obovate to oblanceolate-spatulate, 7–15 mm;

stamens deciduous, 150–500;

ovary 3(–5)-merous, placentation incompletely axile.

broadly ovoid, 3–6 × 2–4 mm, with longitudinal and lateral vittae or vesicles or only ovoid vesicles (all amber).

usually narrowly ovoid-conic to ovoid, rarely ellipsoid, 7–13 × 4–7 mm.

not or scarcely carinate, 0.6–0.8 mm;

testa linear-reticulate.

carinate, 1.5–2 mm;

testa linear-reticulate.

= 16.

= 18.