Flora of North America species comparison

erect, unbranched or sometimes branched distally, (0.5–)1.5–11(–18) dm.

erect, unbranched or branched basally and/or distally, (0.8–)1.3–5.7(–9.2) dm.

petiole 0.5–5 cm;

blade pinnate or, sometimes, 2-pinnate, broadly oblanceolate to ovate in outline, 2.5–11.4(–15.2) cm, lateral lobes lanceolate, (to 10 × 4 mm), margins incised.

petiole 0.5–3.6 cm;

blade 1- or 2-pinnate, ovate or oblong to oblanceolate in outline, 1–15 cm, lateral lobes (4–9 pairs), linear or oblanceolate to ovate, margins entire or dentate.

sessile or shortly petiolate;

blade smaller distally, distal lobes often narrower, surfaces often glabrous or sparsely pubescent.

sessile or shortly petiolate;

blade smaller distally, distal lobes often narrower, surfaces densely pubescent.

elongated or not in fruit, (flowers overtopped by developing fruits).

considerably elongated in fruit.

sepals erect, yellowish, oblong, 1.6–2.7 mm, glabrous;

petals narrowly oblanceolate, 2–2.5 × 0.3–0.6 mm;

median filaments 2.5–3.5 mm;

anthers 0.3–0.4 mm.

sepals spreading to ascending, yellow, purple, or rose, oblong, 0.8–2.6 mm, pubescent;

petals (whitish or yellow), narrowly oblanceolate, 1–3 × 0.3–1 mm;

median filaments 1–2.8 mm;

anthers 0.2–0.4 mm.

divaricate to ascending, (often recurved in age), slender, (3–)4–9(–13) mm.

usually ascending to divaricate or horizontal, rarely descending (at 20–110º angle), straight or slightly recurved, 4–18(–23) mm.

erect to widely spreading, narrowly linear, slightly torulose, (9–)14–30(–34) × 0.6–1.1 mm, (usually terete, rarely slightly flattened, often curved inward);

valves each with obscure midvein;

septum not veined;

ovules 30–62 per ovary;

style obsolete, 0.07–0.3 mm, glabrous.

erect to ascending, usually clavate, rarely broadly linear (wider distally), not torulose, 4–13(–17) × 1.2–2.2 mm;

valves each with distinct midvein;

septum not veined;

ovules 16–40 per ovary;

style obsolete, 0.02–0.2 mm, glabrous.

uniseriate, light brown, narrowly oblong, 1–1.5 × 0.3–0.5 mm.

biseriate, reddish brown, oblong, 0.6–0.9 × 0.4–0.5 mm.

= 14.