Flora of North America species comparison

usually 2–8 from base, decumbent to ascending, 10–40 cm, becoming woody proximally, sparsely to densely pilose, hairs spreading irregularly to ± deflexed, nonseptate, longer hairs 0.6–1.2 mm.

basal;

petiole 7–15 cm;

leaflets 3, green, obtriangular-obcordate, 11–25 mm, lobed 1/6–1/3 length, lobes apically rounded to shallowly convex, surfaces glabrous, oxalate deposits usually in narrow band 0.5–1.5 mm along margins at base of notch, sometimes evident on one surface but not other, rarely absent.

basal and cauline;

stipules oblong, margins narrowly flanged, apical auricles absent;

petiole (1–)2–6 cm, hairs nonseptate;

leaflets 3, glaucous and gray-green to yellowish green, obcordate, 5–12 mm, lobed 1/5–1/3 length, surfaces glabrous to loosely strigose to hirsute-villous, oxalate deposits absent.

umbelliform cymes, 3–7-flowered;

scapes 7–22 cm, glabrous.

umbelliform cymes, 1–2(–3)-flowered;

peduncles 1.5–5 cm.

tristylous and distylous;

sepal apices with 2 orange, narrow-elongate, nonconfluent tubercles;

petals white to pale green proximally with green veins, purplish to lavender or pink distally, (9–)12–16 mm.

semihomostylous or distylous, within level of leaves;

sepal apices without tubercles, surfaces strigose to hirsute-strigose;

petals yellow, rarely with red lines proximally, 8–12 mm.

cylindric, 6 mm, glabrous.

angular-cylindric, abruptly tapering to apex, 12–17(–20) mm, strigose-hirsute.

brown to blackish brown, transverse ridges rarely with whitish lines or spots.

= 28, 42.