horsetail milkweed horsetail lichen • horse-taming · · · Info · Definitions · Synonyms · Characters · · horsetail milkweed · · Text Common · · Latin · · Scripts 18 · · Length 4 · · Syllables Definitions · · · (noun) milkweed of southwestern United States and Mexico; poisonous to livestock. Synonyms: poison milkweed, horsetail milkweed, Asclepias subverticillata. · · Noun Definition 1 Synonyms · · · poison milkweed · · Synonym 1 asclepias subverticillata · · Synonym 2 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 i latin small letter i U+0069 k latin small letter k U+006B l latin small letter l U+006C m latin small letter m U+006D o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 w latin small letter w U+0077