Additional notes (click to expand)
Horticulture
Mexico, Siera Natal mountains and forest, subtropical and warm temperate regions. Full sun, good drainage. Tolerant of light frost.
angustifolium meaning narrow leaved - which is what distinguishes it apart from D. edulis
Dioon meaning two edged (seed)
Endangered species on CITES Appendix II
Nomenclature
Previously grown as Dioon edule var. angustifolium which is now a synonym
http://www.plantsoftheworldonline.org/
Toxicity
Toxic due to steroidal saponins.
Professor Anthony Dayan, 2022
Geographical distribution
- Northern America, Mexico
Dioon angustifolium Miq.
Family: ZAMIACEAEGenus: Dioon
Species: angustifolium Miq.
Distribution summary: Mexico
Conservation status (IUCN Red List): Vulnerable
Habit: Cycad
Hardiness: H1c - Heated greenhouse; warm temperate
Habitat: Woodlands
Garden status: Not currently grown
Reason for growing: Toxic