Flora of North America species comparison

cylindrical, slender, 0.7–1.5 mm diam.

cylindrical, slender, to 2 mm diam.

erect or ascending, unbranched, 0.5–2(–2.5) dm.

erect, unbranched, (1.5–)2.5–8.5(–10) dm, sparsely to densely hirsute at base.

pinnately 5- or 7-foliolate, 2.5–12 cm (not fleshy), leaflets petiolulate;

petiole 1.5–4(–9) cm;

lateral leaflets similar to terminal, or smaller and margins usually toothed, rarely entire;

terminal leaflet (petiolule 0.15–0.3 cm) blade suborbicular to broadly obovate, 0.4–1.5 cm × 2.5–14 mm, base obtuse to subcordate, margins 3–5-toothed, (apiculate).

3 (or 5)-foliolate, (4–)7–20(–22) cm, leaflets petiolulate or subsessile;

petiole (2–)4–12(–14) cm;

lateral leaflets subsessile, blade similar to terminal, larger or smaller in size;

terminal leaflet petiolulate [(0.3–)0.5–1.5 cm], blade ovate to broadly lanceolate, 1.5–7(–9) cm, base usually cuneate, rarely subreniform or obtuse, margins 3–5(–7)-lobed or -toothed, surfaces puberulent.

1–3, (3–)5-foliolate (alternate), petiolate, leaflets petiolulate or subsessile;

petiole 0.2–2(–6.5) cm, base not auriculate;

lateral leaflets similar to terminal;

terminal leaflet subsessile or petiolulate (to 0.2 cm), blade obovate to oblanceolate, 0.5–1.5 cm × 3–10 mm, base cuneate, margins 3-toothed or entire.

(3 or) 4–8, 3 (or 5)-foliolate, petiolate, leaflets petiolulate or sessile;

petiole 1–4 cm, base not auriculate;

lateral leaflets sessile, blade similar to terminal, smaller, margins usually dentate, rarely entire;

terminal leaflet sessile or petiolulate, blade broadly ovate to narrowly lanceolate, 2–7 cm × 6–40 mm, margins minutely pubescent.

ebracteate.

ebracteate.

sepals oblong, 2–3.5 × 2–2.5 mm, lateral pair slightly saccate basally;

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

filaments: median pairs 3–4 mm, lateral pair 2–3 mm;

anthers oblong, 1–1.5 mm.

sepals oblong, 2.5–4 × 1.3–2 mm, lateral pair saccate basally;

petals usually white, rarely pinkish, obovate, 8–15 × 4–8 mm (clawed, apex rounded or emarginate);

filaments: median pairs 3.5–6 mm, lateral pair 2–3.5 mm;

anthers oblong, 0.8–1.2 mm.

erect to ascending, 0.7–22 mm.

ascending to divaricate, (9–)12–25 mm.

linear, 1.6–4 cm × 1–1.3 mm;

ovules 14–24 per ovary;

style 0.7–3 mm.

linear, 1.5–3.2 cm × 1.4–2 mm;

ovules 10–16 per ovary;

style (0.5–)1–4 mm.

brown, oblong, ca. 1.5 × 1 mm.

dark brown, oblong, 1.8–2.3 × 1–1.2 mm.

= 28, 42.

= 40.