OdontonemaOdontonema, the toothedthreads or firespikes, is a genus of flowering plants in the family Acanthaceae. It includes 32 species native to the tropical Americas, ranging from Mexico to Peru and southeastern Brazil.Species32 species are accepted:Odontonema albiflorum LeonardOdontonema album V.M.BaumOdontonema aliciae Odontonema ampelocaule Odontonema amplexicaule NeesOdontonema auriculatum T.F. DanielOdontonema barlerioides Odontonema bracteolatum KuntzeOdontonema brevipes Urb.Odontonema callistachyum KuntzeOdontonema corymbulosum Odontonema cuspidatum Kuntze - Mottled toothedthreadOdontonema dissitiflorum Odontonema fuchsioides Odontonema glaberrimum V.M.BaumOdontonema glabrum BrandegeeOdontonema guayaquilense Odontonema hondurense D.N.GibsonOdontonema laxum V.M.Baum Odontonema liesneri Wassh.Odontonema lindavii Odontonema mazarunensis Wassh.Odontonema microphyllus DurkeeOdontonema mortonii V.M. BaumOdontonema nitidum Kuntze - Shrubby toothedthreadOdontonema peruvianum Odontonema rubrum KuntzeOdontonema rutilans KuntzeOdontonema schomburgkianum KuntzeOdontonema sessile Odontonema speciosum V.M. BaumOdontonema tubaeforme Kuntze - Firespike