Flora of North America species comparison

erect, 20-50 cm, glabrous, from rhizomes.

erect to ± reclining, slender, 50-200 cm, glabrous.

blade 3-4x-ternately compound;

leaflets obovate to orbiculate, apically 3-5-lobed, 5-20 mm, lobe margins crenate, surfaces abaxially glabrous or glandular-puberulent.

blade ternately and pinnately decompound;

leaflets grayish green to brownish to bright green, nearly orbiculate to ovate or obovate, apically undivided or shallowly 2-3-lobed, 5-16(-22) × 3-18 mm, length 1-3.3 times width, leathery and prominently reticulate abaxially, or sometimes quite membranous, margins sometimes revolute, lobe margins entire;

surfaces abaxially glabrous.

terminal, panicles, narrow and dense, many flowered.

racemes or panicles, elongate, few flowered;

peduncles and pedicels neither pubescent nor glandular.

sepals greenish white, lanceolate or broadly ovate to elliptic or obovate, 2-4 mm;

filaments colored, not white, (1.8-)3-5.5 mm;

anthers 2-3.5 mm, blunt to mucronate;

stigma commonly yellowish.

either unisexual with staminate and pistillate on different plants, or bisexual and unisexual with staminate and bisexual on some plants, pistillate and bisexual on others;

sepals 4(-6), greenish to white, nearly orbiculate, 1-2 mm;

filaments white, filiform or sometimes clavate, 1.8-4 mm, rigid to flexible;

anthers 0.5-1.2 mm.

5-17, erect to spreading, not reflexed, nearly sessile;

stipe 0.1-0.3 mm;

body often distinctly curved, elliptic-oblong, nearly terete to slightly flattened, adaxial surface 3-4(-6) mm, glabrous to glandular, veins distinct, not anastomosing-reticulate;

beak 1.5-2.5(-3) mm.

numerous, slightly stipitate;

stipe 0.3-0.7 mm;

body ovoid, 3-4.5 mm, prominently veined, glabrous;

beak 0.7-1.7 mm.

= 56.