The Collaborative International Dictionary
Xerophilous
Xerophilous \Xe*roph"i*lous\, a. [Gr. ? dry + ? to love.] (Bot.) Drought-loving; able withstand the absence or lack of moisture.
Plants which are peculiarly adapted to dry climates are
termed by De Candolle xerophilous.
--Goodale.
Douglas Harper's Etymology Dictionary
xerophilous
"drought-loving," 1863, from xero- + -philous, from Greek from philos "loving," of uncertain origin.
Wiktionary
xerophilous
a. Being able to thrive in dry weather.