Flora of North America species comparison

several from base, decumbent to ascending, (unbranched), 0.5–1.5 dm.

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

(petiole slender);

blade obovate, 3–5 cm (width 10–20 mm, base tapering abruptly to petiole), margins entire, (apex rarely slightly acute).

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

blade oblanceolate, 0.5–1.5 cm (width 3–5 mm), margins entire.

(sessile or shortly petiolate);

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

subcorymbose.

compact to loose.

sepals oblong, 8–10 mm;

petals spatulate, 12–14 mm.

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

petals spatulate, 7.5–10 mm.

(divaricate, straight), 5–10 mm.

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

didymous, mostly highly inflated (strongly flattened at least in 1/2 toward replum), 14–18 × 14–18 mm, (papery, basal sinus slightly notched, apical open, shallow);

valves (retaining seeds after dehiscence), evenly pubescent;

replum lanceolate, 7–10 mm, width 1.5–2.5 mm, as wide as or wider than fruit, apex acute to acuminate;

ovules 8–10 per ovary;

style 5–7 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, (2–3 mm).

slightly flattened.

= 48–52, 52, 64, 67–70.