Flora of North America species comparison

cylindrical, slender, 1–3 mm diam.

cylindrical, slender or stout, 1.5–3 mm diam., (not fleshy).

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

erect, unbranched or branched distally, 2–7(–10.2) dm, glabrous or sparsely to densely puberulent basally or throughout.

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.

usually absent, rarely present, simple, 5–15 cm;

petiole 2.5–12 cm;

blade reniform to cordate, 1.5–4.5(–6) cm.

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).

(3–)5–17(–23), simple or, rarely, proximalmost 3-foliolate, petiolate;

petiole 1–6.5(–8.5) cm, base not auriculate;

blade reniform, deltate-cordate, or ovate-cordate, (1–)2–7.2(–9.7) cm × 10–55(–85) mm, (somewhat fleshy), base cordate or truncate, margins crenate to slightly sinuate, (veins ending in apiculae, surfaces glabrous or sparsely to densely pubescent).

ebracteate.

ebracteate.

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.

sepals oblong, 2.5–4.5 × 1.5–2 mm, lateral pair slightly saccate basally;

petals white, broadly obovate, 7–12 × 4–6 mm (claw to 6 mm, apex rounded to subtruncate or emarginate);

filaments: median pairs 3.5–5 mm, lateral pair 2–3.5 mm;

anthers oblong, 1–1.5 mm.

divaricate-ascending, (7–)10–17 mm.

divaricate to ascending, (7–)10–20 mm.

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

ovules 10–16 per ovary;

style 2–4 mm.

linear, (2–)2.5–3.7(–4) cm × 1.2–2 mm; (valves glabrous or sparsely puberulent);

ovules 14–24 per ovary;

style 0.5–3(–6) mm.

brown, oblong, 1.7–2 × 1–1.2 mm.

brown, oblong, 1.6–2 × 1–1.3 mm.

= 24.