Flora of North America species comparison

fibrous.

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

erect, 6-18(-20) dm, glabrous.

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

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

blade 3-4x-ternately compound;

leaflets orbiculate to obovate, apically 3-cleft or 3-parted, divisions undivided or shallowly 3-lobed, 15-40 mm wide, lobes rounded or somewhat acute, surfaces glabrous or glandular.

racemes, usually elongate, few flowered.

terminal, panicles, many 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.

sepals whitish to purplish, elliptic to ovate or lanceolate, 2-4(-5) mm;

filaments whitish to pinkish, 3-6 mm;

anthers (1.4-)2-4 mm, distinctly apiculate.

2-6, nearly sessile;

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

10-15, spreading in globose heads, not reflexed, sessile or nearly so;

stipe 0-0.6 mm;

body nearly globose to obovoid to obliquely obovate, laterally compressed, somewhat inflated and papery, 4-7(-8) mm, glabrous to glandular, often with 1 or 2 primary veins on each side, veins sinuous, branched, anastomosing-reticulate;

beak 2-4 mm.

= 14, 21.