Flora of North America species comparison

cylindrical, slender, to 2 mm diam.

cylindrical, slender, 1–3 mm diam.

erect, unbranched, 1.5–5 dm, glabrous or sparsely hirsute basally.

erect, unbranched or rarely branched distally, (0.8–)1–2.5(–3.5) dm.

absent.

simple or 3-foliolate, (1.5–)3–8 cm, leaflets petiolulate or subsessile;

petiole (1–)2–6 cm;

lateral leaflets subsessile, blade similar to terminal, much smaller;

terminal leaflet petiolulate (to 1 cm), blade reniform to cordate, (0.5–)1–2 cm, base cordate, margins entire or 3-lobed.

4–7, simple, (crowded distally), petiolate;

petiole (0.5–)1–4(–5) cm, base not auriculate;

blade usually broadly ovate or ovate-lanceolate to ovate-elliptic, rarely obovate, 5–13 cm × 20–65 mm, base cuneate, margins coarsely serrate (with apiculae), or repand to undulate (margins minutely pubescent, apex acute).

3–7, 3-foliolate (or distalmost simple), petiolate, leaflets petiolulate or sessile;

petiole 0.7–3.5 cm, base auriculate (auricle 0.7–5 mm);

lateral leaflets sessile or petiolulate (to 0.5 cm), blade oblong to ovate or oblong;

terminal leaflet (petiolule 0.5–1 cm), blade broadly ovate to suborbicular or reniform, 1.5–4 cm × 15–35 mm, margins often 3 or 5-lobed (lobe apex minutely apiculate, glabrous on margin).

ebracteate.

ebracteate.

sepals oblong, 6–8 × 2–2.5 mm, lateral pair slightly saccate basally;

petals pink, oblanceolate, 15–28 × 5–8 mm, (claw to 10 mm, apex rounded);

filaments: median pairs 8–10 mm, lateral pair 4–6 mm;

anthers linear, 2–3 mm.

sepals oblong, 2.5–3 × 1–1.5 mm, lateral pair not saccate basally;

petals white, oblanceolate, 6–8 × 2–3 mm (not clawed, apex obtuse to subemarginate);

filaments: median pairs 3.5–4 mm, lateral pair 2–2.5 mm;

anthers ovate, ca. 0.7 mm.

divaricate-ascending to suberect, 10–22 mm.

divaricate-ascending, (7–)10–17 mm.

linear, 2.5–3.5(–5) cm × 1.9–2.1 mm;

ovules 12–16 per ovary;

style 2–3.5 mm.

linear, (1.5–)2–3.5(–4) cm × 1.3–1.7 mm;

ovules 10–16 per ovary;

style 2–4 mm.

brown, oblong, 2–2.5 × 1.2–1.5 mm.

brown, oblong, 1.7–2 × 1–1.2 mm.