Herbs , perennial, from fasciculate roots or rhizomes. Leaves
basal and/or cauline, petiolate, petioles gradually to abruptly
shorter on distal leaves; basal leaves usually larger than
cauline; cauline leaves alternate. Leaf blade deeply palmately
divided, round to pentagonal or reniform, margins entire or
lobes apically crenate or lacerate, lobes of basal blades wider
and fewer than those of cauline blades. Inflorescences terminal,
2-100(-more)-flowered racemes (occasionally branched, thus
technically panicles), 5-40 cm or more; bracts subtending
inflorescence branches; pedicels present or absent; bracteoles
(on pedicels) subopposite-subalternate, not forming involucre.
Flowers bisexual, bilaterally symmetric; sepals not persistent
in fruit, 5; upper sepal 1, spurred, 8-24 mm; lateral sepals 2,
± ovate to elliptic, 8-18 mm; lower sepals 2, similar to lateral
sepals; upper petals 2, spurred, enclosed in upper sepal,
nectary inside tip of spur; lower petals 2, plane, ± ovate, ±
2-lobed, clawed, 2-12 mm, nectar