Where Peyote Grows: Range Map and Elevation

Wild peyote, Lophophora williamsii, grows across a discontinuous belt of the northern Chihuahuan Desert: eight counties of South and Trans-Pecos Texas and seven Mexican states from Tamaulipas to Chihuahua, always on calcareous soil between roughly 100 and 1,900 m. The map below plots forty-two verified L. williamsii markers alongside coarser population markers for the genus’s three other taxa, an elevation histogram built from the rarecactus.com field-number database, and a full account of why every marker on this page is deliberately imprecise.

Where does peyote grow?

Wild peyote reaches into the United States only in South and West Texas, then continues through seven Mexican states down the eastern flank of the Sierra Madre Oriental and across the Chihuahuan Desert basins. The forty-two verified markers on the map break down by region: nine in South and Trans-Pecos Texas (Starr, Jim Hogg, Zapata, Webb, Val Verde, Kinney, Brewster and Presidio counties), twelve in Coahuila, eight in San Luis Potosí, six in Nuevo León, three in Zacatecas, two in Chihuahua, and two more grouped under Other States for Tamaulipas and Durango, each kept at state resolution because only one named place per state has been verified. Lophophora williamsii’s full species profile carries the taxonomy, cultivation and full locality list behind these Texas and Coahuila markers; this page adds the other three taxa and puts the whole genus on one map.

The other three taxa are mapped at coarser resolution because they are known from far fewer confirmed records. Lophophora diffusa is a Querétaro endemic, plotted at four municipios: Cadereyta de Montes, Ezequiel Montes, Tequisquiapan and Jalpan de Serra in the Sierra Gorda. Lophophora fricii is mapped at two Coahuila municipios, Viesca and San Pedro, centred on the lagoon basin roughly 20 km from where the type material was collected. Lophophora alberto-vojtechii and the koehresii population of L. diffusa are shown only at state level, for San Luis Potosí and Zacatecas, because their documented localities are too few and too sensitive to place any finer. At rarecactus.com we keep every Lophophora marker at county or municipio resolution at the finest, never a GPS pin, because every fine-grained peyote locality we have seen published online has led to a poached population within a season.

What elevation does peyote grow at?

Between 100 and 1,900 m for Lophophora williamsii, the widest elevation band of the four species. Lophophora diffusa sits higher and narrower, 1,400 to 2,100 m in the Querétaro hills, and the single elevation figure published for L. alberto-vojtechii is about 1,700 m; no elevation range has been published for L. fricii. The histogram below is not the published range, it is what the rarecactus.com field-number database actually records: of 382 Lophophora field records in that database, 93 carry a collector-recorded altitude, and those are the points binned in 100 m increments below.

Read the bars against the published band, not instead of it. A thin bar at the edge of the range usually means one or two documented collections at an elevation extreme, not a systematic survey. The state-by-state table beneath the chart lists the minimum, median and maximum altitude actually recorded for every state with three or more records.

Does peyote grow in Arizona?

No. None of the fifty-one verified Lophophora markers on this page, forty-two of them for L. williamsii, reach Arizona. The westernmost point on the map sits in Chihuahua, Mexico, more than three degrees of longitude east of the Arizona state line. The confusion is understandable: peyote is associated with the American Southwest broadly, and its legal status varies by jurisdiction in ways this page does not cover, see is it legal to own peyote for that, which has fed a folk assumption that the cactus itself grows there. It does not. Arizona’s native cactus flora is saguaro and San Pedro country, not peyote country.

Why doesn’t this map show exact GPS coordinates?

Because iNaturalist, the largest source of public peyote occurrence data, already hides them, and rarecactus.com follows the same practice for every taxon in the genus rather than only the two rated Vulnerable. Of the 2,002 GBIF records for Lophophora williamsii, 1,591, 79.5 percent, come from iNaturalist, and iNaturalist applies geoprivacy obscuring to all of them, blurring each point to a stated uncertainty around 30 km. The same obscuring applies to L. diffusa, L. fricii, the koehresii population and L. alberto-vojtechii as well, even though only L. williamsii and L. diffusa carry an IUCN Vulnerable rating; L. fricii is listed as Data Deficient and the other two have not been assessed. iNaturalist obscures the whole genus as a matter of policy, not case by case. The table below lists the exact GBIF and iNaturalist counts, the obscuring status and the reason for every taxon.

How was this range map verified?

The forty-two Lophophora williamsii markers were checked against the on-site locality list on 24 August 2026 and corrected from an earlier, less accurate set. The coarser markers for L. diffusa, L. fricii, L. alberto-vojtechii and the koehresii population were placed at their named municipio or state centroid using OpenStreetMap’s Nominatim service on 1 September 2026, deliberately at administrative-centre precision rather than at any specific population. The elevation histogram draws on the rarecactus.com verified Lophophora field-number records, the same database behind the peyote harvest and conservation data page’s regrowth figures. For the qualitative side of habitat, soil type, nurse plants and rainfall, see peyote’s botany, ecology, and conservation, and for how the four species differ beyond geography, see the Lophophora species comparison. The Lophophora genus hub holds the rest of the reference material for the genus.

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