Flora of North America species comparison

simple or several from base, decumbent or erect, (unbranched), to 2 dm.

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

(petiole sharply differentiated from blade, slender);

blade suborbicular or obovate to rhombic, 4–8 cm, (base abruptly narrowed to petiole), margins entire, sinuate, or shallowly dentate, (abaxial surface densely pubescent, adaxial lightly pubescent).

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

(proximal petiolate, distal sessile);

blade obovate to rhombic, 0.8–2.3 cm, margins entire or shallowly toothed.

(proximal shortly petiolate);

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

dense, (somewhat elongated in fruit).

loose, elongated.

sepals elliptic or oblong, ca. 6 mm, (lateral pair not saccate or subsaccate, cucullate, median pair thickened apically, cucullate);

petals spatulate, ca. 9 mm, (claw expanded at base).

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

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

(horizontal to ascending, sigmoid or slightly curved), 8–11 mm, (stout).

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

(sessile or substipitate, often becoming copper-red in age), subglobose or ellipsoid, inflated, 6–9 mm, (firm, glossy);

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

replum as wide as or wider than fruit;

ovules 4–8(–12) per ovary;

style 3.5–7 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.

somewhat flattened.

flattened.