Flora of North America species comparison

several from base, usually somewhat decumbent, (unbranched), (0.4–)0.5–2 dm.

several from base, erect or outer ones decumbent or procumbent, (sometimes much-branched distally), to 6 dm.

(petiole slender, often narrowly winged);

blade obovate to orbicular or rhombic-orbicular, 2–9 cm, (base abruptly narrowed to petiole), margins usually entire, rarely with few scattered teeth, (apex rounded or obtuse, sometimes with apical mucro).

blade obovate or rhombic, to ca. 2.5 cm, margins usually shallowly dentate, sometimes lyrate-pinnatifid.

blade spatulate to oblanceolate, 1–3 cm, margins entire, (apex usually obtuse).

(proximal shortly petiolate, distal sessile);

blade obovate to rhombic or oblanceolate, 2–4(–6) cm, margins entire or shallowly and remotely dentate.

loose, (elongated in fruit).

usually dense, (several-flowered).

sepals linear-oblong, 4–7.5 mm;

petals spatulate, 6–11 mm.

sepals ovate or oblong (tapering at base), 3.6–4.8(–5.3) mm, (lateral pair subsaccate, median pair thickened apically, cucullate);

petals obovate to spatulate, 4.5–7.5 mm, (blade narrowed to broad claw, margins sinuate).

(divaricate, slightly sigmoid or nearly straight), 6–12 mm.

(strongly recurved), to 20 mm.

(erect), didymous, suborbicular, inflated, (4–)6–15 × (4–)8–20 mm, (papery, basal and apical sinuses similar, basal rarely shallower, apical deep, narrow and closed or nearly so);

valves retaining seeds after dehiscence, pubescent, trichomes appressed;

replum oblong, constricted, 2–3.5 mm, narrower than fruit, apex obtuse;

ovules (2 or) 4 per ovary;

style 4–6(–9) mm.

(± pendent), ovoid, obcompressed, or globose, compressed, 4–6(–8) mm;

valves (not retaining seeds after dehiscence), sparsely pubescent or glabrous, sparsely pubescent inside;

replum as wide as or wider than fruit;

ovules usually 4, rarely 6, per ovary;

style 2.5–3.6 mm.

(dark brown), flattened, (2–3 mm).

flattened.

= 10, 16, 24.

= 14.