Flora of North America species comparison

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

erect, often branched distally, 0.5–3(–6.5) dm.

(often withered by fruiting), similar to cauline.

(often withered by fruiting);

blade linear-oblanceolate, 2–11(–15) cm × (1.5–)2–6 mm, margins usually entire, rarely denticulate.

(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.

considerably elongated in fruit.

(simple or branched), 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 linear-oblong, 8–13 mm, lateral pair saccate basally;

petals bright or pale yellow, obovate to broadly so, 14–22(–25) × 3–7.5 mm, claw 11–16 mm, apex rounded;

median filaments 10–14 mm;

anthers linear, 3–4 mm.

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

divaricate-ascending, slender, narrower than fruit, 4–11(–15) 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.

ascending, narrowly linear, straight, not torulose, 3–12 cm × (2–)2.4–3.7 mm, strongly latiseptate, not striped;

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

ovules 34–46 per ovary;

style cylindrical, slender, (2–)2.5–5 mm, sparsely pubescent;

stigma entire.

oblong, 1.1–1.5 × 0.6–0.7 mm;

not winged or, rarely, winged distally.

ovoid, (2–)2.5–3.5 × 1.3–2.5 mm;

wing continuous distally, (0.3–0.8 mm wide).

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

of leaves 2- or 3-rayed.

= 16.

= 36.