Flora of North America species comparison

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

1–5 from base, prostrate to slightly decumbent, (arising laterally, also erect or ascending from tuft of basal leaves, unbranched, purple-green), 0.08–0.3 dm.

(petiole slender);

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

(petiole slightly winged);

blade oblanceolate, elliptic, or rhombic, (mostly flat, sometimes somewhat folded), 0.6–2.7 cm, (base tapering to petiole), margins entire, (apex rounded to rounded-acute).

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

(3–7, shortly petiolate or sessile);

blade elliptic to oblanceolate, 0.3–0.5 cm, margins entire.

congested.

crowded, (ca. 3–7 fruits).

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

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

sepals (greenish yellow), linear-triangular, 3.7–5 mm, (lateral pair subsaccate);

petals oblanceolate to narrowly obovate, 4.5–9 mm.

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

(ascending, straight), 1.8–3.4 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).

(shortly stipitate, purple or greenish purple in age), slightly didymous, ovoid to obpyriform, 3–5 mm (wider than long, base rounded-obtuse, apex rounded, flattened, or slightly emarginate);

valves (inflated, slightly wider than replum), pubescent, trichomes scattered;

replum obovate to orbicular-obdeltate, apex rounded, obtuse, or truncate;

septum complete or medially small-perforate;

ovules 4–6(–8) per ovary;

style 2–3.6 mm.

flattened.

relatively plump, (ovate to suborbicular, usually rounded on one side, ± flat or concave on the other, not mucilaginous when wetted).

= 8, 10, 16, 24.