Flora of North America species comparison

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

erect, unbranched or branched (few to several) basally, 0.4–6.5 dm.

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

blade spatulate to broadly oblanceolate, 2.5–7 cm × 3–10 mm, base attenuate, margins dentate or subentire, apex often obtuse, (surfaces pubescent adaxially, trichomes 2 or 3–5-rayed).

(distal) sessile;

blade margins entire or denticulate.

(distal) sessile;

blade margins often entire.

elongated or not in fruit.

considerably elongated 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 to oblong, 8–12 mm, lateral pair saccate basally;

petals yellow, broadly obovate to suborbicular, 15–22 × 3.5–6 mm, claw 8–14 mm, apex rounded;

median filaments 7–14 mm;

anthers linear, 3–4 mm.

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

divaricate-ascending, slender, narrower than fruit, 4–12 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.

erect to ascending, narrowly linear, straight, torulose, 3.8–14 cm × 1.2–3 mm, latiseptate, not striped;

valves with prominent midvein, pubescent outside, trichomes 2 or 3 (or 4)-rayed, glabrous inside;

ovules 26–44 per ovary;

style cylindrical, slender, (1.5–)2–5.5 mm, sparsely pubescent;

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

ovoid, 1.2–1.7 × 0.8–1 mm;

not winged or wing apiculate.

ovoid, 2–3.4 × 1–2 mm;

not winged or, rarely, winged distally.

of leaves 2- or 3-rayed.

of leaves 2–5-rayed.

= 81.

= 36.