Ombrophobe

Ombrophobe or ombrophobous/ombrophobic plant (from Greek ὄμβρος - ombros, "storm of rain" and φόβος - phobos, "fear") is a plant that cannot withstand much rain. The term was introduced by the 19th century botanist Julius Wiesner, who identified the two extreme kinds of plants, ombrophobes and ombrophiles. Xerophytes are usually ombrophobous.