Additional notes (click to expand)
South Africa and N. Coastal districts of E. Cape., to S. Natal, subtropical and temperate regions. Full sun or shade. Tolerates light frost.
Endangered species on CITES Appendix I
Seed is poisonous if ingested. Consumption of the seeds can lead to liver cancer
Toxic due to presence of azoxyglycosides, such as macrozamin and cycasin. Carcinogenic and teratogenic on ingestion .
Professor Anthony Dayan, 2022
- Africa, Southern Africa, Cape Provinces
- Africa, Southern Africa, KwaZulu-Natal
Encephalartos altensteinii Lehm.Family: ZAMIACEAE
Species: altensteinii Lehm.
Common names: Prickly Cycad
Distribution summary: Temperate South Africa
Hardiness: H3 - Half hardy; unheated greenhouse/mild winter
Habitat: Rocky slopes
Garden status: Currently grown
Garden location: Plants in pots (POT)
Reason for growing: Toxic