| Gymnotrix chilensis E. Desv. | Cenchrus chilensis (E. Desv.) Morrone | | | Gymnotrix chilensisE. Desv. | Cenchrus chilensis(E. Desv.) Morrone |
| Gymnotrix complanata Nees | Cenchrus complanatus (Nees) Morrone | | | Gymnotrix complanataNees | Cenchrus complanatus(Nees) Morrone |
| Gymnotrix distachya E. Fourn. | Cenchrus distachyus (E. Fourn.) Morrone | | | Gymnotrix distachyaE. Fourn. | Cenchrus distachyus(E. Fourn.) Morrone |
| Gymnotrix macrostachys Brongn. | Cenchrus elegans (Hassk.) Veldkamp | | | Gymnotrix macrostachysBrongn. | Cenchrus elegans(Hassk.) Veldkamp |
| Gymnotrix nervosa Nees | Cenchrus nervosus (Nees) Kuntze | | | Gymnotrix nervosaNees | Cenchrus nervosus(Nees) Kuntze |
| Gymnotrix sphacelata Nees | Cenchrus sphacelatus (Nees) Morrone | | | Gymnotrix sphacelataNees | Cenchrus sphacelatus(Nees) Morrone |
| Gymnotrix uniseta Nees | Cenchrus unisetus (Nees) Morrone | | | Gymnotrix unisetaNees | Cenchrus unisetus(Nees) Morrone |
| Gymnotrix cenchroides Roem. & Schult. | Cenchrus hohenackeri (Hochst. ex Steud.) Morrone | | | Gymnotrix cenchroidesRoem. & Schult. | Cenchrus hohenackeri(Hochst. ex Steud.) Morrone |
| Gymnotrix petiolaris Hochst. | Cenchrus petiolaris (Hochst.) Morrone | | | Gymnotrix petiolarisHochst. | Cenchrus petiolaris(Hochst.) Morrone |
| Gymnotrix caudata Schrad. | Cenchrus caudatus (Schrad.) Kuntze | | | Gymnotrix caudataSchrad. | Cenchrus caudatus(Schrad.) Kuntze |
| Gymnotrix bambusiformis E. Fourn. | Cenchrus bambusiformis (E. Fourn.) Morrone | | | Gymnotrix bambusiformisE. Fourn. | Cenchrus bambusiformis(E. Fourn.) Morrone |
| Gymnotrix ramosa Hochst. | Cenchrus ramosus (Hochst.) Morrone | | | Gymnotrix ramosaHochst. | Cenchrus ramosus(Hochst.) Morrone |