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Key to Phelipanche

Orobanchaceae

Phelipanche

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1 Calyx lobes filiform to subulate at apices, typically as long as tube; lobes of lower corolla lip with acute apices; corollas mostly dark blue to violet; stems solitary or few-branched
1 Calyx lobes acuminate at apices, typically shorter than the tube; lobes of lower corolla lip with obtuse apices; corollas mostly whitish to light blue or lilac; stems frequently branched