Flora of North America species comparison

(0.6–)0.7–1.6(–2.4) dm.

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.

sessile;

blade base usually auriculate, sometimes amplexicaul, margins usually entire.

[simple or] absent.

lax to compact.

ebracteate, elongated or not in fruit.

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

actinomorphic;

sepals erect or ascending [spreading], lateral pair not saccate basally;

petals white, pink, or purple, claw present, often obscure;

filaments unappendaged, not winged;

pollen 3-colpate.

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

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.

silicles, dehiscent, unsegmented, angustiseptate;

ovules 4–24 per ovary;

style distinct;

stigma entire.

2–4 per fruit.

uniseriate;

cotyledons accumbent.

= 14.