Ariocarpus trigonus is a species of flowering plant in the family Cactaceae, native to Mexico (the states of Tamaulipas and Nuevo León).[2]

| Ariocarpus trigonus | |
|---|---|
| In habitat, San Jose De Salamanca, Tamaulipas, Mexico | |
Conservation status | |
CITES Appendix I (CITES)[1] | |
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Genus: | Ariocarpus |
| Species: | A. trigonus |
| Binomial name | |
| Ariocarpus trigonus (F.A.C.Weber) K.Schum.[2] | |
| Synonyms[2] | |
| |
Taxon identifiers | |
|---|---|
| Ariocarpus trigonus |
|
| Ariocarpus retusus subsp. trigonus |
|
| Anhalonium trigonum |
|