1	"Roots rhizomatous; flowers spring and early summer "	2
1	"Roots fibrous or woody; flowers summer or autumn "	6
2	"Rhizomes long and narrow, not as below (perianth segments 6–8, hairless)"	"Anemone nemorosa"
2	"Rhizomes thick, fused together into contorted mass and tuber-like "	3
3	"Basal leaves absent, rarely 1; leaves below flowers stalked; perianth segments hairless outside"	"Anemone blanda"
3	"Basal leaves 3 or more; leaves below flowers hardly stalked, finely divided; petals downy outside "	4
4	"First leaves below flowers (involucral leaves) finely cut "	"Anemone coronaria"
4	"Involucral leaves undivided or toothed at the tip "	5
5	"Flowers 3–8 cm wide, scarlet, blue, purple pink or white; perianth segments 7–9(–12) "	"Anemone pavonina (A. ×fulgens)"
5	"Flowers 2–4(–6) cm wide, reddish purple; perianth segments 12–20 "	"Anemone hortensis"
6	"Flowers in summer; plants mostly less than 50 cm tall (achenes woolly, flowers 2 or more, involucral leaves stalkless, basal leaves divided into linear segments) "	"Anemone multifida"
6	"Flowers in autumn; plants mostly more than 50 cm tall"	7
7	"Perianth segments mostly 6–15; plant generally more than 1 m tall "	"Anemone ×hybrida"
7	"Perianth segments more than 20; plant generally less than 1 m tall "	"Anemone A. hupehensis var. japonica"