Flora of North America species comparison

simple from base, erect, (usually unbranched), to 4.5 dm.

several from base, decumbent, (arising laterally, unbranched), 1–3 dm.

blade suborbicular to elliptic, 2–9.5(–11.5) cm, margins entire, sinuate, coarsely dentate, or almost lyrate-pinnatifid.

(numerous); (petiole slender, rarely with a few broad teeth);

blade obovate, 3–7 cm, margins entire.

similar to basal, blade narrowly linear or, sometimes, orbicular.

blade oblanceolate, 1.5–3 cm, margins entire.

loose (lax).

loose.

sepals elliptic or ovate, (2–)3.5–7.5 mm, (cucullate);

petals 6–11 mm.

sepals oblong, 5–7 mm;

petals (yellow to purplish), spatulate, 8–12 mm.

(recurved, straight, curved, or sigmoid), 6–20 mm.

(ascending or spreading, slightly curved or sigmoid), 1–2 cm.

obovoid to subglobose, not inflated (not angustiseptate), 3–6 mm;

valves sparsely pubescent, sometimes glabrous inside, trichomes sessile or stalked;

ovules 4(–8) per ovary;

style (1.6–)3–6 mm.

obcordate, angustiseptate, somewhat inflated, (not bladdery), 5–7 × 6–9 mm, (papery, basal sinus absent, apical sinus broad and open);

valves (retaining seeds after dehiscence), loosely pubescent, trichomes spreading;

replum ovate, 5–7 mm, as wide as or wider than fruit, apex acute or obtuse;

ovules 4–6 per ovary;

style 5–7 mm.

flattened.

= 10, 30.