Flora of North America species comparison

cylindrical, slender, 0.7–1.5 mm diam.

(tuberiform, fragile), moniliform, segments oblong, 3–5 mm diam., (fleshy).

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

erect, unbranched, 1–3.5 dm.

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).

palmately compound (biternate), 7–20 cm, leaflets petiolulate;

petiole 4–13 cm;

lateral leaflets similar to terminal, blade sometimes smaller;

terminal leaflet (petiolule 1–3(–4) cm), blade ternately or pinnately lobed, (distal segment) linear, 0.7–3.5 cm × 0.6–3 mm, base attenuate to cuneate, margins entire (apiculate).

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.

(2 or) 3, palmately compound (biternate, similar to rhizomal leaves, alternate to subopposite), petiolate, leaflets petiolulate;

petiole (0.5–)1–4(–5.5) cm, base not auriculate;

lateral leaflets similar to terminal;

terminal leaflet (petiolule (0.3–)0.7–1.5(–2.5) cm), blade (ternate, distal segment) linear, (0.4–)1.5–5(–6.5) cm × 0.7–4(–6) mm, base cuneate to attenuate, margins entire.

ebracteate.

ebracteate.

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.

sepals oblong, 4–6 × 1.5–2 mm, lateral pair not saccate basally;

petals white to pale pink, oblanceolate, 9–15 × 2–4 mm, (not clawed, apex rounded);

filaments: median pairs 6–7.5 mm, lateral pair 3–5 mm;

anthers linear, 1.5–2.5 mm.

erect to ascending, 7–15(–25) mm.

ascending to divaricate, 10–25(–35) mm.

linear, 2–3 cm × 1.2–1.7 mm;

ovules 12–16 per ovary;

style 1–2 mm.

linear-lanceolate, 2–3.5 cm × 1.5–2 mm;

ovules 10–14 per ovary;

style 4–7(–10) mm.

brown, oblong, ca. 1.5 × 1 mm.

brown, oblong, 1.5–2.5 × 1–1.5 mm.

= 28, 42, 64.

= 64, 112.