Flora of North America species comparison

erect, unbranched or branched distally, 1.5–7 dm.

erect, unbranched or branched basally and/or distally, (0.8–)1.5–7(–9.4) dm.

blade linear to linear-oblanceolate, 1.5–6(–8) cm × 2–8 mm, base attenuate, margins entire or dentate, apex acute.

blade oblanceolate to linear-oblanceolate, 2–7 cm × 2–7 mm, base attenuate, margins entire or denticulate, apex acute.

(distal) sessile;

blade margins entire or denticulate.

sessile;

blade margins entire or denticulate.

elongated or not in fruit.

(densely flowered), elongated or not in fruit.

sepals oblong to linear-oblong, 4–6 mm, lateral pair slightly saccate basally;

petals yellow, oblanceolate, 6–9(–11) × 1–2 mm, claw 5–7 mm, apex rounded;

median filaments 5–7 mm;

anthers narrowly oblong to linear, 1–2 mm.

sepals linear-oblong, 5–8 mm, lateral pair saccate basally;

petals yellow, narrowly obovate to spatulate, (8–)10–15 × (2–)2.5–4 mm, claw 6–9 mm, apex rounded;

median filaments 6–10 mm;

anthers narrowly linear, 1.7–2 mm.

divaricate-ascending to ascending, stout, slightly narrower than fruit, 4–9(–15) mm.

usually ascending, rarely divaricate-ascending, stout, slightly narrower than fruit, (often crowded), 4–7(–10) mm.

ascending to divaricate-ascending, (not appressed to rachis), narrowly linear, straight, not torulose, 3–5.8(–7) cm × 1–1.5(–1.8) mm, slightly 4-angled or terete, not striped;

valves with somewhat prominent midvein, pubescent outside, trichomes 2–4-rayed, glabrous inside;

ovules 36–66 per ovary;

style cylindrical, stout, 0.7–3 mm, moderately to sparsely pubescent;

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

suberect to ascending, (subappressed to rachis or not), narrowly linear, straight, not torulose, 2.5–5.8(–6.4) cm × 1.8–2.5 mm, slightly 4-angled, not striped;

valves with somewhat prominent midvein, pubescent outside, trichomes 2–4-rayed, glabrous inside;

ovules 40–56 per ovary;

style stout, 0.5–1.5 mm, moderately to sparsely pubescent;

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

ovoid, 1.2–1.7 × 0.8–1 mm;

not winged or wing apiculate.

ovoid to oblong, 1.5–2 × 1–1.2 mm;

not winged.

of leaves 2- or 3-rayed.

of leaves 2- (or 3-) rayed.

= 81.

= 54.