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1 Petals 2× as long as the sepals; nectaries wider than long; flowers fertile; [native]
|1 Petals 2.5-4× as long as the sepals; nectaries longer than wide; flowers sterile (rarely fertile); [introduced].|
|..2 Flowers white or greenish; cymes lax, subcorymbose; leaves not markedly reduced upward from base of plant upward|
|..2 Flowers deep pink to purple; cymes densely subglobose; leaves typically strongly reduced in size from base of plant upward|