Flora of North America species comparison

several from base, erect or decumbent (arising laterally, unbranched), 0.5–1.5 mm.

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

(petiole slender);

blade obovate to orbicular, 3–6 cm (width 10–20 mm), margins entire or dentate.

(long-petiolate);

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

blade spatulate, 1–2 cm (width 3–6 mm), margins entire, (apex often acute).

(sessile or shortly petiolate);

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

congested.

dense, (relatively short).

sepals narrowly lanceolate, 5–8(–9) mm;

petals narrowly oblanceolate, 9–12 mm, (claw undifferentiated from blade).

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, slightly sigmoid), 8–15 mm.

(erect to spreading, ascending, or (proximal) horizontal, straight to slightly curved, sometimes loosely sigmoid), 6–12(–20) mm.

(often purplish in age), didymous, subreniform, strongly inflated, 9–18 × 11–21(–30) mm, (papery, base obtuse to slightly cordate, apical sinus V-shaped or convex, open crests rounded);

valves (2-keeled on side away from replum, each 3-sided, keels rounded, sides flat or slightly convex, retaining seeds after dehiscence), evenly and densely pubescent;

replum oblong, as wide as or wider than fruits, apex obtuse;

ovules 4–12 per ovary;

style (4–)6–8 mm (exceeding sinus).

(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.

somewhat flattened.

= 8, 10, 16, 24.

= 12.