Flora of North America species comparison

black, tuberous.

brown, thick, tuberous.

erect, scapose, 10-30 cm, glabrous.

decumbent, 20-40 cm, glabrous.

blade 2x-ternately compound;

leaflets widely ovate or obovate to nearly rotund, apically 3-lobed, 8-30 mm wide, surfaces glabrous.

blade 1-3x-ternately compound;

leaflets ovate to obovate to reniform or orbiculate, 3-(or more)-lobed, largest leaflets less than 15 mm wide, lobe margins crenate, surfaces glabrous.

umbels or flowers solitary, (1-)3-6-flowered;

involucral bracts usually 3-foliolate, petiolate and opposite, or sessile with leaflets appearing to be whorls of 6 petiolate leaves, otherwise similar to basal leaves.

terminal, racemes, few flowered.

sepals not caducous, white to pinkish, showy, elliptic to obovate, 5-18 mm, longer than stamens;

filaments narrowly clavate, 3-4 mm;

anthers 0.4-0.7 mm.

sepals whitish, ovate or elliptic, 0.9-2.8(-3) mm;

filaments colored, 2-3 mm;

anthers 1.8-2.3 mm, mucronate, tip 0.1-0.4 mm;

stigma color unknown.

(4-)8-12(-15), short-stipitate;

stipe 0.1-0.4 mm;

body ovoid to fusiform, 3-4.5 mm, prominently 8-10-veined.

few, not reflexed, nearly sessile;

stipe 0.1-0.3 mm;

body ellipsoid to oblong, 3.5-4.5 × 1.5-2 mm, glabrous, veins 10-12, not anastomosing-reticulate;

beak (1.3-)2.3-3 mm.