Ipomoea purga (Wender.) Hayne
      
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2 557173 Ipomoea purga (Wender.) Hayne [80 271080 Convolvulus purga Wender.] Convolvulaceae
O.C. Berg, C.F. Schmidt, Atlas. Off. Pfl., vol. 1 : t. 33a (1891) [n.a.]