Flora of North America species comparison

several from base, erect or outer decumbent, (often several-branched, branches slender and flexuous), to 8 dm.

simple or few from base, decumbent, (straggling and flexuous, usually branched distally), 4–8 dm.

blade pinnatisect to repand, 3–9(–14) cm, margins entire.

blade narrowly elliptic to oblanceolate, 4–12 cm, margins entire, sinuate, or shallowly dentate, (apex acute).

(sometimes secund, proximal usually petiolate, distal sessile);

blade elliptic, 1–6 cm, (distal with cuneate base), margins entire or deeply dentate.

(sessile or proximal shortly petiolate);

blade linear to narrowly elliptic, 3–4 cm, margins entire, sinuate, or remotely dentate, (apex acute).

dense.

loose, (sometimes greatly elongated).

sepals elliptic to oblong, 3–5.5 mm, (median pair slightly thickened apically, cucullate);

petals (sometimes drying slightly purplish), suborbicular or broadly ovate, 4.5–7(–9) mm, (narrowing gradually to short claw).

sepals elliptic, 3.5–4 mm, (lateral pair subsaccate, median pair thickened apically, cucullate);

petals broadly obovate, 4–5 mm, (sometimes with short, broad claw).

(horizontal or recurved and ascending at tip, sometimes loosely sigmoid), (5–)10–20 mm.

(recurved), 15–20(–25) mm.

globose or broadly ellipsoid, not or slightly inflated, (4–)5–8 mm, (smooth);

valves (not retaining seeds after dehiscence), glabrous;

replum as wide as or wider than fruit;

ovules (8–)12–16(–20) per ovary;

style (1.5–)2–3(–4) mm.

(pendent), subglobose or broadly ovoid, slightly compressed, 5–7 mm;

valves (not retaining seeds after dehiscence), glabrous throughout;

ovules per ovary unknown;

style 1.5–2 mm.

flattened.

flattened.

= 12.

= 16.