Flora of North America species comparison

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

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

(petiole slender);

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

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

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

(proximal shortly petiolate);

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

subcorymbose.

loose, elongated.

sepals oblong, 8–10 mm;

petals spatulate, 12–14 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).

(divaricate, straight), 5–10 mm.

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

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, (2–3 mm).

flattened.

= 48–52, 52, 64, 67–70.