Euphorbia tannensis
| Euphorbia tannensis | |
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| Species: | E. tannensis
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| Binomial name | |
| Euphorbia tannensis | |
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E. tannensis subsp. tannensis | |
Euphorbia tannensis is a species of herb or shrub native to Australia and some Pacific islands.
Description
It grows as an erect annual or perennial herb or shrub, from 10 centimetres to a metre in height, with green or yellow flowers.[1] It often appears spindly due to its leaves being deciduous.[2]
Taxonomy
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.[2][3]
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).[2] It is widely reported as occurring only in Australia;[4] yet the type specimen was collected on Tanna in what is now Vanuatu, and it has also been recorded in New Caledonia.[5]
References
- ^ "Euphorbia tannensis Spreng". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
- ^ a b c 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. Agricultural Research Service, United States Department of Agriculture.
- ^ Morat, Philippe; Jaffré; Veillon, Jean-Marie. "The flora of New Caledonia's calcareous substrates". Adansonia. 3. 23 (1): 109–127.
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