Flora of North America species comparison

few to several from base, prostrate to decumbent or erect, 0.5–2(–4) dm.

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

blade suborbicular to narrowly or broadly oblanceolate to broadly elliptic or rhombic, (1.2–)2–6(–8) cm, (base usually abruptly narrowed to petiole), margins entire, sinuate, or lobed.

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

(proximal petiolate, distal sessile);

blade obovate or elliptic to spatulate, 0.5–2 cm, margins entire.

(proximal shortly petiolate);

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

(usually not secund), dense, (sometimes elongated in fruit).

loose, elongated.

sepals lanceolate, 4–6(–7) mm;

petals (yellow, cream-yellow, cream-white, or white), obovate to oblanceolate, 6–13 mm, (claw weakly differentiated from blade).

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

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

(erect to divaricate-ascending or recurved, erect in distal 1/3, usually sigmoid, sometimes straight or slightly curved), 4.5–10(–15) mm.

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

(sessile or substipitate), subglobose, obovoid, or ellipsoid, compressed (sometimes slightly angustiseptate), 3–9 mm, (rigid, apex truncate, retuse, or rounded-acute);

valves sparsely or densely pubescent, sometimes sparsely pubescent inside; (septum sometimes fenestrate, perforate, or obsolete);

ovules 4–16 per ovary;

style 1–9 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 (sometimes slightly).

flattened.