This species was first published by Curt Polycarp Joachim Sprengel in 1809, based on a specimen collected by Georg Forster in . In 1977 two species, E. eremophila and E. finlaysonii, were submerged within E. tannensis as E. tannensis var. eremophila and E. tannensis var. finlaysonii respectively, these being treated as varieties of a new subspecies, E. tannensis subsp. eremophila.
Distribution and habitat
This species is widespread on the Australian mainland, occurring in every mainland state, though only in the far north-west corner of Victoria (Australia). It is widely reported as occurring only in Australia; yet the type specimen was collected on Tanna in what is now Vanuatu, and it has also been recorded in New Caledonia.
- "Euphorbia tannensis Spreng.". FloraBase. Western Australian Government Department of Parks and Wildlife.
- Hassall, David (1977). "The genus Euphorbia in Australia". Australian Journal of Botany. 25: 429–453. doi:10.1071/BT9770429.
- "Euphorbia tannensis Spreng.". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government.
- "Euphorbia tannensis". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA).
- Morat, Philippe; Jaffré; Veillon, Jean-Marie. "The flora of New Caledonia's calcareous substrates". Adansonia. 3. 23 (1): 109–127.