Flora of North America species comparison

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

several from base, decumbent to erect, (several-branched, frequently stout), 1.5–6 dm.

(petiole slender);

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

blade elliptic, (1.5–)3–6.5 cm, margins entire, repand, or shallowly dentate.

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

(proximal shortly petiolate, distal sessile);

blade linear to elliptic or obovate, (0.5–)1–3.5(–4.5) cm, margins entire or repand.

congested.

loose.

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

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

sepals oblong, lanceolate, or elliptic, (3–)3.5–6(–7.5) mm, (lateral pair subsaccate, median pair thickened apically, cucullate);

petals (yellow to orange), suborbicular or obovate, (5–)6.5–8(–11) mm, (narrowing gradually to broad claw, usually widened at base).

(divaricate, slightly sigmoid), 8–15 mm.

(recurved, sigmoid), 5–15 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 shortly stipitate), orbicular or obovoid, often slightly compressed, (3.5–)4–6 mm;

valves sparsely pubescent, trichomes sessile and stellate, densely pubescent inside, trichomes simple or branched;

ovules 4–12 per ovary;

style 2–4.5 mm.

flattened.

flattened.

= 8, 10, 16, 24.

= 10, 20.