Flora of North America species comparison

few, blackish, filiform or somewhat tuberous.

erect, not scapose, 15-50(-60) cm, glabrous.

erect, coarse, 50-300 cm.

blade: leaflets reniform to obovate, apically 4-7-lobed, 10-30 mm wide, lobe margins crenate, surfaces abaxially glaucous.

blade ternately and pinnately decompound;

leaflets light to dark green, cordate or nearly orbiculate to ovate or obovate, apically undivided to 2-3(-5)-lobed or -toothed, 11-68 × 5-70 mm, length 0.8-2.6 times width, membranous to firm, margins scarcely revolute, lobe margins entire, surfaces abaxially pubescent to glabrous.

panicles or nearly corymbs, few flowered.

racemes or panicles to corymbs, apically ± rounded, many flowered;

peduncles and pedicels often pubescent.

pedicels very slender, elongate;

sepals white, obovate-spatulate, 2.5-4 mm;

filaments white, 2.5-4 mm;

anthers 0.3-0.5 mm.

unisexual or bisexual (sometimes bisexual with very few stamens);

sepals 4(-6), white to purplish, elliptic-rounded, 2-3.5 mm;

filaments ascending, white to purplish, filiform to distinctly clavate, 1.5-7 mm, usually rigid;

anthers 0.5-1.5(-2.1) mm, usually blunt or only slightly apiculate.

3-8, spreading;

stipe 1-3(-4) mm, usually ± 1/2 as long (sometimes nearly as long) as achene body;

body flat, falcate, 3-5 mm, abaxially convex, adaxially concave, conspicuously 3-veined on each face;

beak minute.

numerous, sessile to stipitate;

stipe 0.5-1.5(-2.4) mm;

body ellipsoid, 3-5 mm, prominently veined, usually pubescent;

beak usually persistent, straight or coiled distally, 0.6-2.5 mm, about 1/2 length of achene body.

= 126.