Opuntia crassa
Opuntia crassa
Opuntia crassa
Opuntia crassa Haw. is treated as an accepted taxon in Plants of the World Online.1
The current source-backed classification places it in Cactaceae within Opuntia.12
Its recorded native range/source remark is MEXICO, MXEDU, NORTHERNAMERICA, MXCME, MXECO, MXEHI, MXEAG, MXCTL, MXECU, MXETA, MXEGU, MXC_MO; Mexico (México State to Guanajuato).1
POWO records the plant context as Unknown, 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. "Opuntia crassa Haw.". Royal Botanic Gardens, Kew. Accessed: 2026-06-10. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:136485-1 ↩
- GBIF Secretariat. "Opuntia crassa". GBIF Backbone Taxonomy. Accessed: 2026-06-10. https://www.gbif.org/species/7280434 ↩
Plants In This Group
Opuntia crassa
Opuntia crassa
Opuntia crassa is a robust cactus species belonging to the family Cactaceae, characterized by its remarkably thick, fleshy, and broad cladodes (pads) 1. It is well-regarded for its exceptional drought tolerance and architectural form.
Taxonomy and naming
Classified under the genus Opuntia, the specific epithet 'crassa' translates to 'thick' or 'fat' in Latin, directly referencing its unusually succulent pads 2. It is commonly referred to as the thick prickly pear.
Distribution and habitat
This species is native to the arid desert regions and dry shrublands of Mexico. It thrives in high-elevation rocky terrains, gravelly slopes, and nutrient-poor soils under harsh environmental conditions 1.
Appearance
Opuntia crassa features striking blue-green, oval to subcircular cladodes that are distinctly thick. While it may bear few to no large spines, it possesses numerous dense clusters of tiny, irritating glochids (barbed microspines). In late spring, it produces attractive yellowish flowers.
Cultivation and care
In cultivation, it is an exceptionally low-maintenance plant. It demands full direct sunlight and excellent air circulation to thrive. Watering should only be done when the substrate is completely dry, and withheld almost entirely during the winter dormant period 2.
Common cultivation mistakes
Overwatering is the most frequent cause of failure, quickly leading to root and stem rot. Placing the plant in low-light environments causes etiolation, where the pads grow thin, weak, and pale.