1 "Plants climbing, woody at base; leaves opposite; styles plumose, elongating in fruit; plants mostly dioecious" Clematis 1 "Plants rosetted or creeping (or aquatic), herbaceous; leaves alternate or rosetted; styles not plumose; flowers bisexual" 2 2 "Flowering stems with a whorl of involucral of bracts (bracts often leaf-like and sometimes subtending the petiole)" 3 2 "Flowering stems without a whorl of involucral bracts" 4 3 "Flowers terminal and solitary on erect stems, immediately subtended by an involucre of leaf-like bracts; fruit a 5-beaked capsule formed from several united folicles" "Nigella {Nigella damascena}" 3 "Flowers terminal, solitary or in umbels of 2–5; involucre distant from flowers (often subtending the petiole); fruit an achene" "Anemone {Anemone xhybrida}" 4 "Flowers prominently spurred; fruits of 1 or more follicles; escapes from horticulture" 5 4 "Flowers not or hardly spurred; fruit an achene (several to many aggregated in heads or spikes), or a head of follicles (in alpine Psychrophila)" 6 5 "Flowers actinomorphic; fruit a head of several follicles" "Aquilegia {Aquilegia vulgaris}" 5 "Flowers zygomorphic; fruit a single follicle" Consolida 6 "Fruit a head of sessile, radiating, several-seeded follicles; perianth segments in 1 whorl, white or pinkish; fleshy alpine herb usually flowering during or soon after snow-melt" "Psychrophila {Psychrophila introloba}" 6 "Fruiting head or spike composed of achenes; perianth in 2 distinct whorls (but segments sometimes early-deciduous), petals white, yellow or red" 7 7 "Sepals apparently peltately attached, the basal spur almost as long as the upper part; achenes densely arranged on a slender, spike-like receptacle many times longer than wide" "Myosurus {Myosurus minimus var. australis}" 7 "Sepals attached basally or nearly so; fruiting receptacle discoid to oblong, but never more than 4 times longer than wide" 8 8 "Petals red, blotched darker near base; nectaries absent; leaves finely divided" "Adonis {Adonis microcarpa}" 8 "Petals yellow or white; nectaries present; leaves various" 9 9 "Sepals 5; leaves variously divided, or if entire, then attenuate at base" Ranunculus 9 "Sepals 3; leaves simple, broadly ovate to reniform, cordate at base" Ficaria