klammath weed Klamath weed • klan · · · Info · Definitions · Synonyms · Characters · · klammath weed · · Text Common · · Latin · · Scripts 13 · · Length 3 · · Syllables Definitions · · · (noun) yellow-flowered perennial common in fields and waste places but a weed in rangelands. Synonyms: klammath weed, Hypericum perforatum. · · Noun Definition 1 Synonyms · · · hypericum perforatum · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 d latin small letter d U+0064 e latin small letter e U+0065 h latin small letter h U+0068 k latin small letter k U+006B l latin small letter l U+006C m latin small letter m U+006D t latin small letter t U+0074 w latin small letter w U+0077