Flora of North America species comparison

simple or few from base, ascending to erect, (0.5–)1–2(–3.5) dm.

simple from base, decumbent, (occasionally few-branched), 0.5–1.5(–2) dm.

(petiole tapering to blade);

blade rhombic to elliptic and irregularly angular, sometimes spatulate to oblanceolate, 1.5–7.5(–10) cm, margins entire.

blade elliptic to broadly obovate, triangular, rhombic, or round, 1.5–3(–4) cm, margins often sinuate or shallowly lobed.

(not or loosely overlapping, petiolate or distal sessile);

blade spatulate to oblanceolate, 1–4 cm, margins entire.

(sessile or shortly petiolate);

blade elliptic to oblanceolate to obovate, 0.5–1.5 cm, (base narrowed to petiole), margins entire.

crowded, elongated.

compact to loose.

sepals ovate, oblong, or elliptic 4–7.5 mm, (median pair thickened apically, cucullate);

petals spatulate or broadly cuneate, 6–13 mm, (claw slightly expanded at base).

sepals oblong to broadly elliptic, 4–7.5 mm, (lateral pair saccate or not);

petals spatulate, 7.5–10 mm.

(ascending, curved or sigmoid), 6–12(–20) mm.

(ascending or divaricate-spreading, straight to loosely sigmoid or curved), 4–10 mm.

(substipitate), globose or obovoid to ellipsoid, sometimes slightly obcompressed, 4–9 mm;

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

replum as wide as or wider than fruit;

ovules 4–24 per ovary;

style (2–)4–7 mm.

(sessile or substipitate), elliptic, suborbicular, or oblong, strongly compressed (angustiseptate), 5–9 mm, (rounded to sharply keeled on 1 side, edges ± keeled);

valves: (margins covering replum edges or not), usually pubescent throughout or, rarely, glabrous inside;

ovules (4–)8–14(–16) per ovary;

style 2–4.5(–5) mm.

flattened.

slightly flattened.

= 10.