Flora of North America species comparison

(0.6–)0.7–1.6(–2.4) dm.

erect or decumbent, unbranched or branched distally.

basal and cauline;

petiolate or sessile;

basal rosulate, petiolate, margins entire, denticulate, or dentate;

cauline blade (base auriculate or subamplexicaul [sagittate]), margins entire or dentate.

petiole differentiated from blade, (1.7–)2–3.6(–4) times longer than blade;

blade ovate to oblong, 4–8(–9) mm wide, base cuneate.

2–6.

lax to compact.

(corymbose, several-flowered), considerably elongated or congested in fruit.

petals white, 3.8–6 × 1.2–2.2(–2.9) mm.

sepals erect, oblong, or ovate [obovate];

petals white, pink, or purple, spatulate [obovate, oblanceolate, oblong, or, rarely, broadly linear], (longer than sepals), claw obscurely differentiated from blade, (apex obtuse or rounded);

stamens slightly tetradynamous;

filaments not dilated basally;

anthers ovate [oblong], (apex obtuse);

nectar glands lateral, 2 and subtending stamens, or 4 and 1 on each side of stamen.

horizontal or slightly descending, forming an angle 80º or more with rachis.

horizontal or, rarely, ascending, slender.

often strongly winged, obovate to obdeltate, (4–)4.8–7(–8) × (3–)3.5–5.5(–6) mm, 1–2 times as long as wide, apex truncate to strongly emarginate;

style (0.8–)1–2 mm.

sessile, obcordate, obovate, obdeltate, elliptical, or oblong, smooth, strongly angustiseptate, (winged or not winged apically);

valves each obscurely to prominently veined, strongly keeled;

replum rounded;

septum complete;

ovules 4–14[–24] per ovary;

style included in, or much exceeding, apical notch;

stigma capitate.

2–4 per fruit.

plump or slightly compressed, not winged, ovoid [oblong];

seed coat (longitudinally, minutely reticulate to nearly smooth), not mucilaginous when wetted;

cotyledons accumbent.

= 7.

= 14.