Flora of North America species comparison

cylindrical, slender, 0.5–1.5 mm diam.

cylindrical, slender, 0.7–1.5 mm diam.

erect, unbranched, (0.6–)1–2(–3) dm.

erect or ascending, unbranched, 0.3–1.5(–2) dm.

pinnately 5 or 7-foliolate, (2–)4–10 cm, (not fleshy), leaflets sessile;

petiole (1.5–)3–7(–9) cm;

lateral leaflets similar to terminal, blade sometimes smaller;

terminal leaflet blade linear to narrowly oblong or narrowly lanceolate, (0.5–)1–2.5(–3.3) cm × 0.5–4(–8) mm, base cuneate to attenuate, margins entire.

pinnately 5 or 7-foliolate, (1.3–)2.5–6.5 cm, (not fleshy), leaflets petiolulate;

petiole (0.5–)1.5–5.5 cm;

lateral leaflets similar to terminal, blade sometimes smaller;

terminal leaflet (petiolule 0.15–0.7 cm), blade ovate to elliptic, (0.2–)0.4–1.2(–1.5) cm × (1–)2.5–6 mm, base cuneate to obtuse, margins entire, (apiculate).

(1 or) 2 or 3, 5 or 7-foliolate, petiolate, leaflets sessile;

petiole (0.2–)0.5–1.2(–1.5) cm, base not auriculate;

lateral leaflets similar to terminal, blade smaller;

terminal leaflet blade narrowly lanceolate to linear, 1–3.2(–4) cm × 0.8–2.5(–3.5) mm, base cuneate to attenuate, margins entire (apex acute to acuminate).

1–3, 5 or 7-foliolate, petiolate, leaflets petiolulate or subsessile;

petiole 0.2–1.5 cm, base not auriculate;

lateral leaflets similar to terminal;

terminal leaflet (subsessile or petiolule to 0.2 cm), blade ovate to elliptic, 0.6–1.3 × 0.1–0.7 cm, base cuneate, margins entire.

ebracteate.

ebracteate.

sepals ovate, 2.5–3.5 × 1.5–2.5 mm, lateral pair not saccate basally;

petals white, obovate, 5–9 × 2.5–5 mm (clawed, apex rounded);

filaments: median pairs 3–4.5 mm, lateral pair 1.5–2.5 mm;

anthers oblong, 1–1.5 mm.

sepals ovate to oblong, 3–4 × 1.8–2.5 mm, lateral pair slightly saccate basally;

petals usually white, rarely lavender, broadly obovate, 7–10 × 3–6 mm, (clawed, apex rounded);

filaments: median pairs 3–4.5 mm, lateral pair 2–3 mm;

anthers oblong, 1–1.5 mm.

suberect to divaricate-ascending, (7–)10–25 mm.

erect to ascending, 7–15(–25) mm.

linear, (1.5–)2–4 cm × 1.5–2 mm;

ovules 6–12 per ovary;

style (1–)1.5–2.5(–4) mm.

linear, 2–3 cm × 1.2–1.7 mm;

ovules 12–16 per ovary;

style 1–2 mm.

brown, oblong, 1.8–2.2 × 0.9–1.1 mm.

brown, oblong, ca. 1.5 × 1 mm.

= 28, 42.

= 28, 42, 64.