Flora of North America species comparison

(0.6–)0.7–1.6(–2.4) dm.

(0.1–)0.5–3.2(–4.5) 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.

petiole differentiated from blade, 0.8–1(–2) times longer than blade;

blade ovate to oblong, 4–9(–15) mm wide, base cuneate.

2–6.

(4–)7–16(–21).

lax to compact.

often lax.

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

petals white or, occasionally, pinkish purple, (3.4–)4–7(–8.5) × (1–)1.5–2.7(–4.2) mm.

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

horizontal to strongly descending, forming an angle to 130º 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.

winged or, occasionally, not winged, obovate to obcordate, (2.5–)5–8(–12) × (1.5–)2.6–4.5(–6.6) mm, 1–2 times as long as wide, apex obtuse, truncate, to emarginate;

style (0.4–)1–2.2(–3) mm.

2–4 per fruit.

4–6 per fruit.

= 14.

= 14, 28.