Flora of North America species comparison

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

erect, unbranched basally, branched distally, (1.3–)2–10.5(–13.5) 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 0.4–4.2 cm;

blade pinnate, oblanceolate to obovate in outline, 1.5–6 cm, lateral lobes [2–4 (or 5) pairs], lanceolate, (5–22 × 1–5 mm), margins usually entire or crenate to incised, rarely lobed.

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 sparsely 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, yellowish, oblong, 0.9–1.5 mm, glabrous;

petals oblanceolate, 1.1–1.8 × 0.4–0.6 mm;

median filaments 0.8–1.4 mm;

anthers 0.3–0.4 mm.

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

divaricate to ascending or suberect, often straight, 3–9(–11) 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.

divaricate to erect, fusiform, not torulose, (2–)3–5(–6) × (0.8–)1–1.3 mm, (long-acute at both ends);

valves each with obscure midvein;

septum not veined;

ovules 4–12 per ovary;

style (0.2–)0.3–0.6(–0.8) mm, glabrous.

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

uniseriate, light brown, ellipsoid, 1–1.4 × 0.6–0.8 mm.

= 14.

= 14.