penstemon serrulatus penstemon rydbergii • penstemon whippleanus · · · Info · Definitions · Synonyms · Characters · · penstemon serrulatus · · Text Common · · Latin · · Scripts 20 · · Length 7 · · Syllables Definitions · · · (noun) whorls of deep blue to dark purple flowers at tips of erect leafy stems; moist places from British Columbia to Oregon. Synonyms: cascade penstemon, Penstemon serrulatus. · · Noun Definition 1 Synonyms · · · cascade penstemon · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075