arroyo willow arroyo grape • arsenic antidote · · · Info · Definitions · Characters · · arroyo willow · · Text Common · · Latin · · Scripts 13 · · Length Definitions · · · (noun) shrubby willow of the western United States. Synonyms: Salix lasiolepis. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 i latin small letter i U+0069 l latin small letter l U+006C o latin small letter o U+006F r latin small letter r U+0072 w latin small letter w U+0077 y latin small letter y U+0079