Flora of North America species comparison

several from base, prostrate to decumbent, (usually unbranched, rarely branched distally), 1–3 dm.

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

(tufted);

blade broadly obovate, 1–2 cm, margins entire or with 1 or 2 broad teeth, (apex rounded to obtuse).

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

blade oblanceolate to nearly oblong, similar to basal, (base cuneate), margins entire.

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

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

(secund), loose, (elongated in fruit).

dense.

sepals (yellowish), elliptic to lanceolate, (2–)3–4 mm;

petals spatulate, (3.9–)5–7 mm.

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).

(recurved), 6–8(–12) mm.

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

(usually pendent), elliptic to subglobose, usually slightly compressed (latiseptate), 3–4 mm;

valves densely pubescent, sometimes with scattered trichomes inside;

ovules 4 per ovary;

style ca. 3 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.

somewhat flattened.

flattened.

= 12.