Flora of North America species comparison

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

few to several from base, erect or outer ones decumbent, 0.5–4 dm.

(petiole slender);

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

(long-petiolate);

blade elliptic to obovate or rhombic, 2–6(–9) cm, margins entire.

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

(sessile or shortly petiolate);

blade oblanceolate to spatulate, 1–3 cm, (proximal broader), margins entire.

subcorymbose.

dense, (relatively short).

sepals oblong, 8–10 mm;

petals spatulate, 12–14 mm.

sepals elliptic or narrowly oblong, 4–5.4 mm, (tapered to apex);

petals (white, base and claw yellow, conspicuously purple-veined), usually broadly obovate or rhombic, 6–10 mm, (± equal to blade, tapering to slender claw).

(divaricate, straight), 5–10 mm.

(erect to spreading, ascending, or (proximal) horizontal, straight to slightly curved, sometimes loosely sigmoid), 6–12(–20) 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, often reddish magenta), usually ovoid to subglobose, inflated, 4–6(–7) mm;

valves (not retaining seeds after dehiscence), glabrous;

replum as wide as or wider than fruit;

septum perforate;

ovules 8–12 per ovary;

style 1.5–4 mm.

flattened, (2–3 mm).

somewhat flattened.

= 48–52, 52, 64, 67–70.

= 12.