Flora of North America species comparison

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

several from base, erect or outer decumbent, (unbranched), to 2 dm.

(petiole slender);

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

blade elliptic to lanceolate or obovate, 3–8 cm, margins entire.

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

(proximal shortly petiolate or sessile, distal sessile);

blade elliptic or obovate, to 2 cm, margins entire.

congested.

dense.

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

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

sepals narrowly elliptic or oblong, 4.5–5.3 mm, (tapering to the somewhat thickened, cucullate apex, lateral pair subsaccate);

petals (bright yellow), lingulate or broadly obovate, 7.5–8.5 mm, (narrowing to broad claw, joining in an arch, margins lacerate).

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

(divaricate-ascending to horizontal, straight to loosely curved), to 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 substipitate), suborbicular to broadly ovate or ellipsoid, slightly compressed, 6–8 mm;

valves pubescent;

ovules 12–22 per ovary;

style 2–3 mm.

flattened.

flattened.

= 8, 10, 16, 24.

= 10.