Dioon purpusii

Dioon purpusii is an accepted cycad native to Puebla and Oaxaca, Mexico, where it grows in a seasonally dry tropical region. Mature foliage has a glossy surface and prickled leaflets, giving the crown an architectural presence as well as a need for clearance from paths. ## Form and habitat A botanical comparison of Dioon species describes D. purpusii alongside D. argenteum and D. califanoi, noting their relationship and shared canyon region. [Plants of the World Online](https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:80655-2) records its accepted name and range, while the [species comparison](https://www.cycad.org/documents/descriptions/Dioon/Dioon-argenteum.pdf) details leaf traits and the canyon region shared with related species. ## Landscape use Use it as a specimen where the divided crown can be viewed from more than one side and its prickled foliage will not brush a walkway. A freely draining position and measured watering are prudent for a permanent planting. The seasonal-dry source habitat is useful context, but it is not a reason to treat a newly planted or container-grown cycad as drought-proof. Adjust watering to heat, root space, and substrate. ## Maintenance Allow room for the crown and leave healthy foliage in place. Remove only dead or badly damaged leaves, taking care around the sharp leaflet margins. In a container, use a stable pot with drainage and monitor moisture more often during hot or windy weather.