| 18105 | Gymnotrix chilensis É. Desv. | Cenchrus chilensis (É. Desv.) Morrone | 464259 | | | Gymnotrix chilensis É. Desv. | Cenchrus chilensis (É. Desv.) Morrone |
| 18106 | Gymnotrix complanata Nees | Cenchrus complanatus (Nees) Morrone | 464261 | | | Gymnotrix complanata Nees | Cenchrus complanatus (Nees) Morrone |
| 18107 | Gymnotrix distachya E. Fourn. | Cenchrus distachyus (E. Fourn.) Morrone | 464262 | | | Gymnotrix distachya E. Fourn. | Cenchrus distachyus (E. Fourn.) Morrone |
| 18108 | Gymnotrix macrostachys Brongn. | Cenchrus elegans (Hassk.) Veldkamp | 476767 | | | Gymnotrix macrostachys Brongn. | Cenchrus elegans (Hassk.) Veldkamp |
| 18109 | Gymnotrix nervosa Nees | Cenchrus nervosus (Nees) Kuntze | 476796 | | | Gymnotrix nervosa Nees | Cenchrus nervosus (Nees) Kuntze |
| 18110 | Gymnotrix sphacelata Nees | Cenchrus sphacelatus (Nees) Morrone | 464281 | | | Gymnotrix sphacelata Nees | Cenchrus sphacelatus (Nees) Morrone |
| 18111 | Gymnotrix uniseta Nees | Cenchrus unisetus (Nees) Morrone | 464287 | | | Gymnotrix uniseta Nees | Cenchrus unisetus (Nees) Morrone |
| 18112 | Gymnotrix cenchroides Roem. & Schult. | Cenchrus hohenackeri (Hochst. ex Steud.) Morrone | 464265 | | | Gymnotrix cenchroides Roem. & Schult. | Cenchrus hohenackeri (Hochst. ex Steud.) Morrone |
| 417273 | Gymnotrix petiolaris Hochst. | Cenchrus petiolaris (Hochst.) Morrone | 464275 | | | Gymnotrix petiolaris Hochst. | Cenchrus petiolaris (Hochst.) Morrone |
| 476778 | Gymnotrix caudata Schrad. | Cenchrus caudatus (Schrad.) Kuntze | 476777 | | | Gymnotrix caudata Schrad. | Cenchrus caudatus (Schrad.) Kuntze |
| 476783 | Gymnotrix bambusiformis E. Fourn. | Cenchrus bambusiformis (E. Fourn.) Morrone | 464257 | | | Gymnotrix bambusiformis E. Fourn. | Cenchrus bambusiformis (E. Fourn.) Morrone |
| 476797 | Gymnotrix ramosa Hochst. | Cenchrus ramosus (Hochst.) Morrone | 464279 | | | Gymnotrix ramosa Hochst. | Cenchrus ramosus (Hochst.) Morrone |