Wikipedia
Tetragonotheca
Tetragonotheca is a genus of North American plants in the daisy family. Nerveray is a common name for plants in this genus.
Species- Tetragonotheca helianthoides L. - MS AL GA FL NC SC TN VA
- Tetragonotheca ludoviciana (Torr. & A.Gray) A.Gray ex E.Hall - TX LA AR
- Tetragonotheca parviflora Jacq. - West Indies
- Tetragonotheca repanda (Buckley) Small - TX
- Tetragonotheca texana Engelm. & A.Gray ex A.Gray & Engelm. - TX, Coahuila, Nuevo León, Tamaulipas, Jalisco, Colima
see Guizotia Rumfordia
- Tetragonotheca abyssinica - Guizotia abyssinica
- Tetragonotheca guatemalensis - Rumfordia guatemalensis