Flora of North America species comparison

yellow to light brown, fibrous, from stout caudex.

becoming black when dry, tuberous, not ribbed, irregular.

erect, 30-80 cm, glabrous or glandular.

erect, 10-45 cm, rigid, glabrous.

blade 1-4x-ternately compound;

leaflets reniform or cordate to obovate or orbiculate, apically 3-12-lobed, 10-45 mm wide, lobe margins often crenate, surfaces abaxially glabrous or glandular.

blade 2x-ternately compound;

leaflets cuneate to reniform, undivided, cleft, or lobed, 2-7 mm wide, margins entire or sometimes weakly crenate, surfaces glabrous, somewhat glaucous.

terminal and axillary, panicles to corymbs, many flowered.

terminal, racemes, several flowered.

sepals greenish to purple, ovate or obovate to oval, 1.8-4 mm;

filaments yellow to greenish yellow, 3.5-5.5 mm;

anthers 2-4 mm, mucronate to acuminate;

stigma purple.

sepals lanceolate to obovate, in staminate flowers 1.7-3 mm, in pistillate flowers 0.7-1.5 mm;

filaments colored, not white, ca. 1.5 mm;

anthers 1.4-2 mm;

stigma color unknown.

(3-)7–13, not reflexed, sessile or nearly so;

stipe terete, 0-0.2 mm;

body ovoid to ellipsoid, not laterally compressed, 3.5-5 mm, glabrous, very strongly veined, veins not anastomosing-reticulate;

beak 1.5-3 mm.

few, not reflexed, nearly sessile;

stipe 0.1-0.3 mm;

body ovoid, not laterally compressed, adaxial surface 2.7-3.7 × 1.4-1.6 mm, glabrous, prominently 6-8-veined, veins not anastomosing-reticulate;

beak 0.5-1 mm.