Additional notes (click to expand)


Transvaal, S. Africa, subtropical and warm temperate. Needs full sun, good drainage, protection from frost.

Endangered species on CITES Appendix I


Toxic due to presence of azoxyglycosides, such as macrozamin and cycasin. Carcinogenic and teratogenic on ingestion .
Professor Anthony Dayan, 2022

Geographical distribution

  • Africa, Southern Africa

Encephalartos transvenosus Stapf & Burtt Davy

Genus: Encephalartos
Species: transvenosus Stapf & Burtt Davy
Common names: Modjadji cycad
Distribution summary: S.Africa (Transvaal)
Habit: Cycad
Hardiness: H3 - Half hardy; unheated greenhouse/mild winter
Habitat: Rocky slopes
Garden status: Not currently grown
Reason for growing: Toxic

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