Ombrophobe
Ombrophobe or ombrophobous/ombrophobic plant is a plant that cannot withstand much rain. A similar term are xerophile and xerophyte.
Ombrophile or ombrophilous/ombrophilic plant is a plant that thrives in abundant amounts of rain.
The terms were introduced by the 19th-century botanist Julius Wiesner, who identified the two extreme kinds of plants, ombrophobes and ombrophiles. Xerophytes are usually ombrophobous.