Flora of North America species comparison

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

erect, unbranched basally, branched distally, 4.5–13 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 1–3 cm;

blade pinnate, oblanceolate to obovate or ovate in outline, 2–10 cm, lateral lobes (2–5 pairs), oblanceolate to lanceolate, (4–12 × 1–5 mm),margins entire or serrate to crenate, (apex obtuse).

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 ascending, greenish to yellowish, oblong, 2–2.9 mm, pubescent, (trichomes dendritic, mixed with glandular papillae);

petals oblanceolate, 1.8–2.6 × 0.5–0.7mm;

median filaments 1.8–2.4 mm;

anthers 0.3–0.5 mm.

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

divaricate, straight, 13–31 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, linear, slightly torulose, 8–16(–20) × 1–1.3 mm, (abruptly acute at both ends);

valves each with distinct midvein, (sparsely pubescent or glabrescent);

septum not veined;

ovules 48–64 per ovary;

style 0.1–0.2 mm, glabrous.

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

biseriate, light brown, ellipsoid, 0.9–1.1 × 0.5–0.6 mm.

= 14.

= 42.