

Giant Saguaro
Carnegiea gigantea
Carnegiea gigantea (Engelm.) Britton & Rose is treated as an accepted taxon in Plants of the World Online.1
The current source-backed classification places it in Cactaceae within Carnegiea.12
Its recorded native range/source remark is MXEAG, MXECU, MXEHI, MXEZA, MXEQU, MXEGU, MXNBS, ARIOO, MXESL, CALOO, NORTHERNAMERICA, MXEDU; SE. California to S. Arizona and Mexico (Baja California Norte, Sonora, Chihuahua).1
POWO records the plant context as succulent tree, desert or dry shrubland.1
This is a source-populated draft intended for later Kaktus Doktoru editorial rewriting; care advice and morphology should be reviewed before publication.
References
- Plants of the World Online. "Carnegiea gigantea (Engelm.) Britton & Rose". Royal Botanic Gardens, Kew. Accessed: 2026-06-10. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:47644-2 ↩
- GBIF Secretariat. "Carnegiea gigantea". GBIF Backbone Taxonomy. Accessed: 2026-06-10. https://www.gbif.org/species/5384200 ↩
Measured
Draining Mix
SE. California to S. Arizona and Mexico (Baja California Norte, Sonora, Chihuahua)
Automatically collected source range/note: MXE_AG, MXE_CU, MXE_HI, MXE_ZA, MXE_QU, MXE_GU, MXN_BS, ARI_OO, MXE_SL, CAL_OO, NORTHERN_AMERICA, MXE_DU; SE. California to S. Arizona and Mexico (Baja California Norte, Sonora, Chihuahua).