- Agave salmiana, Pulque agave;Agave ferox
- Bazzania harpago, Bazzania ferox;Campanea harpago;Mastigobryum ferox;Mastigobryum harpago;Mastigobryum lrssenii
- Datura quercifolia, Angels-trumpets;Datura ferox;Chinese Thorn-apple;Datura ferox auct non L
- Hamadryas amphichloe, Pale Cracker;Hamadryas ferox;Hamadryas glauconome
- Hamadryas glauconome, Glaucous Cracker;Pale Cracker;Hamadryas ferox;Hamadryas amphichloe
- Machaerium ferox, Drepanocarpus ferox macrophyllum;Drepanocarpus ferox
- Psorophora ferox, Culex ferox;Culex posticatus Wiedemann, 1821;Culex musicus Say, 1829;Janthinosoma sayi Dyar & Knab, 1906;Janthinosoma echinata Grabham, 1906;Janthinosoma terminalis Coquillett, 1906;Janthinosoma vanhalli Dyar & Knab, 1906;Janthinosoma sayi Theobald, 1907;White-footed woods mosquito
- Wercklea ferox, Hibiscus ferox
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