Flora of North America species comparison

erect, unbranched or branched distally, (1–)2–7(–10) dm.

erect, unbranched or branched proximally, often branched distally, (1.5–)3–6.2(–8.5) dm.

petiole 0.1–2(–3) cm;

blade 2- or 3-pinnate, ovate or oblong to obovate in outline, to 15 cm, lateral lobes linear or oblong, (to 10 × 2 mm), margins entire.

petiole 0.4–3.5 cm;

blade pinnate, ovate to oblanceolate in outline, 1.5–7 cm, lateral lobes linear or oblong, margins entire or dentate to incised.

sessile or shortly petiolate;

blade smaller distally, distal lobes often narrower, surfaces often glabrous.

sessile or shortly petiolate;

blade smaller distally, lobes linear to filiform, margins entire, surfaces usually glabrous, rarely pubescent.

considerably elongated in fruit.

considerably elongated in fruit.

sepals erect to ascending, yellowish, oblong, 1.8–2.8 mm, glabrate to sparsely pubescent;

petals narrowly oblanceolate, 2–3 × 0.4–0.6 mm;

median filaments 2–3 mm;

anthers 0.3–0.4 mm.

sepals ascending, yellow, oblong, 1.5–2 mm, glabrous;

petals narrowly oblanceolate, 1.7–2.6 cm × 0.5–1 mm;

median filaments 1.5–2 mm;

anthers 0.3–0.4 mm.

divaricate to ascending, straight, (5–)8–15(–20) mm.

horizontal to divaricate, straight, (8–)10–15(–20) mm.

divaricate-ascending to erect, narrowly linear, torulose, (12–)15–27(–30) × 0.5–0.8(–1) mm, (straight or curved upward);

valves each with distinct midvein;

septum with a broad central longitudinal band appearing as 2 or 3 veins;

ovules 20–48 per ovary;

style obsolete, 0.05–0.2 mm, glabrous.

erect, linear, not torulose, (9–)12–17 × 0.8–1.1 mm, (straight or slightly curved inward);

valves each with obscure midvein;

septum not veined;

ovules 18–32 per ovary;

style 0.1–0.2 mm, glabrous.

uniseriate, reddish brown, oblong, 0.7–1.3 × 0.3–0.6 mm.

uniseriate, reddish brown, oblong, 1–1.3 × 0.6–0.7 mm.

= 28.

= 14.