1	"Flower bilateral; sepals petal-like, not alike, uppermost spurred or hooded, generally > others"	2
1	"Flower radial; sepals petal-like or not, +- alike"	4
2	"Uppermost sepal hooded, not spurred, enclosing petals, stamens"	Aconitum
2	"Uppermost sepal spurred, +- flat or curved but not hooded, generally not enclosing petals, stamens"	3
3	"Annual, generally from taproot; petals 2, fused; pistil 1"	"Consolida {Consolida ajacis}"
3	"Perennial herb, generally from +- fibrous or fleshy roots; petals 4, free; pistils 3(5)"	Delphinium
4	"Sepal spurs present, petal spurs 0; plant generally tufted; leaves basal, simple, linear"	Myosurus
4	"Sepal spurs 0, petal spurs occasional; plant not tufted; leaves generally basal and cauline, generally dissected or compound (or basal, simple, lanceolate to reniform)"	5
5	"Pistils 1; fruit a berry"	"Actaea {Actaea rubra}"
5	"Pistils (1)2--many; fruit achene or follicle (+- utricle in <i>Trautvetteria</i>)"	6
6	"Ovules >= 2 per ovary; fruit follicle"	7
6	"Ovule 1 per ovary; fruit achene (+- utricle in <i>Trautvetteria</i>)"	10
7	"Petals spurred"	Aquilegia
7	"Petals 0 or not spurred"	8
8	"Leaf simple"	Caltha
8	"Leaf compound"	9
9	"Plant from slender rhizomes or stolons, scapose; sepals 5--8, linear; petals 5--7"	"Coptis {Coptis laciniata}"
9	"Plant from clustered, slender to fusiform or +- spheric fleshy roots, not scapose; sepals generally 5, oblong to obovate; petals 0"	Enemion
10	"Cauline leaves generally opposite or 0 but involucre bracts leaf-like, generally in 1--2 whorls of 2--5"	11
10	"Cauline leaves alternate or 0"	12
11	"Plant perennial herb, not vine; basal leaves present, cauline 0 but involucre bracts leaf-like, generally in 1--2 whorls of 2--5; inflorescence terminal; sepals 5--10"	Anemone
11	"Plant +- woody vine; basal leaves 0, cauline generally many, opposite; inflorescence axillary; sepals generally 4"	Clematis
12	"Perianth parts in 2 whorls; sepals generally green to +- yellow, not petal-like; petals 3--many, yellow to orange, occasionally white or purple"	13
12	"Perianth parts in +- 1 whorl (inner << outer, gland-like in <i>Ranunculus hystriculus</i>); sepals generally green to white or +- purple, petal-like or not; petals generally 0"	14
13	"Anthers +- purple; petals yellow to orange, base +- purple, nectaries 0"	"Adonis {Adonis aestivalis}"
13	"Anthers yellow; petals generally yellow, occasionally white or purple, nectaries near base"	Ranunculus
14	"Leaf compound, leaflets entire, crenate, or lobed; flower unisexual or bisexual"	Thalictrum
14	"Leaf simple, crenate to deeply lobed; flower bisexual"	15
15	"Leaf crenate to palmately lobed, lobes rounded to obtuse, entire to toothed or lobed; inflorescence scapose, flowers 1(3); sepals 6--13 mm, blade +- flat; petals 2--4 mm, gland-like"	"Ranunculus hystriculus"
15	"Leaf deeply palmately lobed, lobes +- wedge-shaped, toothed distally; inflorescence not scapose, flowers >= 5 in terminal panicle; sepals 2.5--6 mm, blade cup-like; petals 0"	"Trautvetteria {Trautvetteria caroliniensis}"