Flora of North America species comparison

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

few to several from base, prostrate to decumbent or erect, (usually unbranched), 0.3–1.5(–3) dm.

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

blade obovate, 3–7 cm, margins entire.

(petiole slender);

blade suborbicular to obovate or elliptic, 1–8 cm, (base narrowing gradually or abruptly to petiole), margins sinuate-dentate or entire.

blade oblanceolate, 1.5–3 cm, margins entire.

(proximal shortly petiolate, distal sessile);

blade oblanceolate, 0.5–1.5(–2.5) cm, margins entire or remotely dentate.

loose.

dense or loose.

sepals oblong, 5–7 mm;

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

sepals elliptic or oblong-elliptic, 4.5–7 mm, (median pair cucullate);

petals spatulate, 7–9(–14) mm, (claw undifferentiated from blade).

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

(sigmoid or curved), 5–10(–15) 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.

(erect), ellipsoid to obovoid, compressed at apex and sometimes margins (strongly latiseptate), (5–)6–9 mm, (apex acute, often beaked);

valves densely pubescent, trichomes appressed or spreading, sometimes sparsely pubescent inside, trichomes 4- or 5-rayed;

ovules 4–12 per ovary;

style (2–)3–6.5 mm, (often sparsely pubescent).

inner surface flattened, outer convex.