Flora of North America species comparison

slender, 0.5–1 mm diam.

erect to ascending, branched, 1.5–2 dm.

3 or 4, 3- or 5-foliolate, petiolate, leaflets petiolulate;

petiole 0.5–1.7 cm, base not auriculate;

lateral leaflet blade linear to linear-lanceolate, 0.9–1.5 cm × 1–3 mm, margins entire;

terminal leaflet (petiolule 0.3–0.5 cm), blade obovate to lanceolate (linear distally), 1.3–2.3 cm × 2–8 mm, base cuneate, margins entire or subapically 1- or 2-toothed.

ebracteate.

sepals oblong, 1.2–1.5 × 0.6–0.8 mm, lateral pair not saccate basally;

petals white, oblanceolate, 2–2.5 × 0.8–1 mm, (not clawed, apex rounded);

filaments: median pairs 1.5–1.8 mm, lateral pair 1–1.2 mm;

anthers ovate, 0.2–0.3 mm.

ascending to suberect, 5–14 mm.

linear, 1–2 cm × ca. 1 mm;

ovules 16–24 per ovary;

style 0.5–0.7 mm.

brown, oblong, 1.2–1.5 × 0.8–1 mm.

and basal leaves absent.