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Filipendula
See list of 3 species in this genus-
1a. Leaves with 7–17 (–25) pairs of well-developed lateral leaflets; carpels pubescent; corolla with (5–) 6–7 (–9) petals [Fig. 840]; roots producing tubers
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1b. Leaves with 2–5 pairs of well-developed lateral leaflets; carpels glabrous; corolla usually with 5 petals; roots without tubers
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2a. Petals pink to red, with irregularly toothed margins; lateral leaflets with 3–5 lobes; terminal leaflet with usually 2 or 3 lobes; fruit stipitate, straight
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2b. Petals white, with entire margins; lateral leaflets usually without lobes, merely coarsely toothed; terminal leaflet with 3–5 lobes; fruit sessile, twisted
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Each photo represents one species in this genus.