Hydrastis hydrastine • hydrate · · · Info · Definitions · Characters · · Hydrastis · · Text Latin · · Script 9 · · Length Definitions · · · (noun) small genus of perennial herbs having rhizomes and palmate leaves and small solitary flowers; of northeastern United States and Japan. Synonyms: genus Hydrastis. · · Noun Definition 1 Characters · · H latin capital letter h U+0048 a latin small letter a U+0061 d latin small letter d U+0064 i latin small letter i U+0069 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 y latin small letter y U+0079