Flora of North America species comparison

few, blackish, filiform or somewhat tuberous.

erect, scapose, or nearly scapose with very slender rhizomes, (3-)5-20(-30) cm, glabrous.

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

blade 2x-pinnately compound, proximal primary divisions ternate;

leaflets cuneate-obovate to orbiculate, apically 3-5-lobed, 2-10 mm, surfaces glabrous.

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

racemes, usually elongate, few flowered.

panicles or nearly corymbs, few flowered.

pedicels recurved in fruit;

sepals early deciduous, purplish tinged, ovate or elliptic, 1-2.3(-2.7) mm;

stamens 8-15;

filaments purple;

anthers bright yellow, 1.5-3 mm;

stigmas purple.

pedicels very slender, elongate;

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

filaments white, 2.5-4 mm;

anthers 0.3-0.5 mm.

2-6, nearly sessile;

body lance-obovoid, 2-3.5 mm, with thick veins.

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.

= 14, 21.