Flora of North America species comparison

simple from base, erect, (usually unbranched), to 4.5 dm.

several from base, usually prostrate, rarely decumbent, (unbranched, often purplish, sparsely pubescent), to 1.5 dm.

blade suborbicular to elliptic, 2–9.5(–11.5) cm, margins entire, sinuate, coarsely dentate, or almost lyrate-pinnatifid.

blade deltate, hastate, or, less often, rhombic to elliptic, 1–5 cm, margins entire (often partially involute).

similar to basal, blade narrowly linear or, sometimes, orbicular.

(proximal shortly petiolate);

blade linear to oblanceolate, 0.5–1.5 cm, margins entire.

loose (lax).

loose, elongated.

sepals elliptic or ovate, (2–)3.5–7.5 mm, (cucullate);

petals 6–11 mm.

sepals (often purplish), oblong, lanceolate, or ovate, 4–6 mm, (median pair thickened apically);

petals spatulate or cuneate, 5–8(–9) mm, (margins undulate).

(recurved, straight, curved, or sigmoid), 6–20 mm.

(ascending, slightly sigmoid to straight), 5–10 mm.

obovoid to subglobose, not inflated (not angustiseptate), 3–6 mm;

valves sparsely pubescent, sometimes glabrous inside, trichomes sessile or stalked;

ovules 4(–8) per ovary;

style (1.6–)3–6 mm.

ovoid or ellipsoid, slightly compressed, 3–5(–6) mm, (base often gibbous);

valves pubescent, trichomes loose, furcate near their bases and spreading, sometimes sparsely pubescent inside;

ovules 4(–8) per ovary;

style 1.5–4 mm.

flattened.

flattened.

= 10, 30.