ðɪs sˈʌbdʒɛnəs ɪŋklˈuːdz ɐbˌaʊt twˈɛnti ˈeɪt spˈiːsiːz əkˈɜːɹɪŋ əkɹˌɑːs nˈɔːɹθ ɐmˈɛɹɪkə, ɪŋklˈuːdɪŋ ɐ fjˈuː spˈiːsiːz ɪn sˈɛntɹəl ɐmˈɛɹɪkə ænd ðə kˌæɹəbˈiən.
This subgenus includes about 28 species occurring across North America, including a few species in Central America and the Caribbean.