Ipomoea imperati (Vahl) Griseb. [ Ipomoea littoralis (L.) Boiss.]
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Ipomoea imperati (Vahl) Griseb. [ Convolvulus imperati Vahl] [Convolvulaceae]
Nat. Hist. Mus., London (The Endeavour Botanical Illustrations): (1768-1771)