wˈʌn spˈiːsiːz ɪnðə dʒˈɛnəs, mɑːɹʃˈæliə ɡɹˈændɪflˌoːɹə ˌæpɐlˈeɪʃən bˈɑːɹbɚɹəz bˈʌʔn̩z ɪz ɛkstˈɪŋkt, hˌævɪŋ bˌɪn wˈaɪpt ˈaʊt ɪnðɪ ˈɜːli twˈɛntiəθ sˈɛntʃɚɹi.
One species in the genus, Marshallia grandiflora (Appalachian Barbara's buttons) is extinct, having been wiped out in the early 20th century.