Flora of North America species comparison

internodes 4-lined.

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

ascending to deflexed, sessile;

blade narrowly oblong-elliptic (proximal) or lanceolate to linear-lanceolate, 10–30 × 3–8 mm, mostly longer than internodes, not or scarcely smaller distally, leathery, margins plane, apex acute, basal or near-basal veins 1–3(–5), midrib with 0–2 pairs of branches.

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).

broadly pyramidal to subcorymbiform, 1(–30)-flowered, branching mostly dichasial.

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

4–10 mm diam.;

sepals lanceolate, usually unequal, 3–5 × 0.8–1 mm, margins sometimes ciliate, not setulose-ciliate, apex acute to acuminate;

petals orange-yellow, obovate, 6–10 mm;

stamens 50–80, irregularly grouped;

styles 2–4 mm;

stigmas capitate.

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.

ellipsoid to rostrate-subglobose, 3–4.5 × 2–2.5 mm.

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

0.5–0.6(–0.7) mm;

testa obscurely linear-reticulate to irregularly reticulate.

not or scarcely carinate, 0.6–0.8 mm;

testa linear-reticulate.

= 24.

= 16.