Flora of North America species comparison

erect, unbranched or branched basally, (0.4–)1.5–4.5(–7) dm.

erect, often branched distally, sometimes proximally, (0.5–)1.2–10(–12) dm.

(often withered by fruiting), similar to cauline.

(often withered by flowering);

blade spatulate to narrowly oblanceolate or linear, 2–18(–27) cm × 3–15(–30) mm, base attenuate, margins entire or dentate to denticulate, apex acute.

(proximal and median) petiolate and (distal) sessile, (petiole (0.3–)0.5–2(–3) cm);

blade [linear, narrowly oblanceolate, elliptic, or oblong, (1–)2–8(–11) cm × (2–)5–12(–17) mm, base attenuate], margins sinuate or coarsely dentate to denticulate or repand, (distal) entire or denticulate, (apex acute).

(distal) sessile;

blade margins entire or denticulate.

considerably elongated in fruit.

considerably elongated in fruit.

sepals linear-oblong, 4–6 mm, lateral pair not saccate basally;

petals yellow, narrowly oblanceolate to spatulate, 6–8 × 1.5–2 mm, claw 3–6 mm, apex rounded;

median filaments 4–6 mm;

anthers narrowly oblong, 0.8–1.3 mm.

sepals narrowly oblong, 7–14 mm, lateral pair saccate basally;

petals usually orange to yellow, rarely lavender or purplish, suborbicular to obovate, 12–25(–30) × (5–)6–10(–13) mm, claw 8–16 mm, apex rounded;

median filaments 9–18 mm;

anthers linear, 3–4 mm.

divaricate, stout, as wide as fruit, 2–4(–6) mm.

divaricate to ascending, stout or slender, narrower than fruit, 4–17(–25) mm.

widely spreading to divaricate-ascending, narrowly linear, straight or curved upward, somewhat torulose, (2–)3–8(–10) cm × 1.5–2 mm, 4-angled, not striped;

valves with prominent midvein, pubescent outside, trichomes 2-rayed and, fewer, 3-rayed, often glabrous, sometimes pubescent inside;

ovules (40–)50–80(–90) per ovary;

style cylindrical or subclavate, stout, 1–4 mm, sparsely pubescent;

stigma slightly 2-lobed, lobes as long as wide.

divaricate or ascending to erect, narrowly linear, straight or curved upward, not torulose, 3.5–11(–15) cm × 1.3–3.3 mm, 4-angled to latiseptate, not striped;

valves with prominent midvein, pubescent outside, trichomes 2–5-rayed, glabrous inside;

ovules (40–)54–82 per ovary;

style cylindrical, usually stout, rarely slender, 0.2–2.5(–3) mm, sparsely pubescent;

stigma 2-lobed, lobes as long as wide.

oblong, 1.1–1.5 × 0.6–0.7 mm;

not winged or, rarely, winged distally.

oblong, 1.5–4 × 1–2 mm; winged apically or not winged.

of leaves 2-rayed, mixed with fewer 3-rayed ones.

of leaves 2–4(–7)-rayed.

= 16.

= 36.