Euphorbia regis-jubae
| Euphorbia regis-jubae | |
|---|---|
| |
| In habitat, Teguise, Lanzarote | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Malpighiales |
| Family: | Euphorbiaceae |
| Genus: | Euphorbia |
| Species: | E. regis-jubae
|
| Binomial name | |
| Euphorbia regis-jubae J.Gay[2]
| |
| Synonyms[2] | |
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Euphorbia regis-jubae is a species of flowering plant in the family Euphorbiaceae, native to the eastern Canary Islands, western Morocco, north-western Western Sahara.[2] In Spanish, it is known as tabaiba morisca.[3] It has often been confused with Euphorbia lamarckii. The specific epithet regis-jubae, meaning 'King Juba's euphorbia' honours the king's contributions to natural history and his role in bringing the genus to notice. The palm tree genus Jubaea is also named after Juba.[4]
Description
[edit]Euphorbia regis-jubae is a shrub, up to 2 m (7 ft) tall. It has light brown stems and terminal rosettes of leaves that are narrow and oblong, with a pointed or somewhat blunt apex. The inflorescences are pedunculate, umbel-like, usually simple with five to eight rays, more rarely compound. The greenish-yellow floral bracts are large, not joined at the base, and persist when the fruit has formed. The fruit capsules are light brown or red. The seeds have a stalked elaiosome (caruncle).[5][3]
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Inflorescence -
Fruit
Taxonomy
[edit]Euphorbia regis-jubae was first described by Jaques Étienne Gay in 1847.[2] It has been treated as a subspecies of other Canary Island euphorbias under the names E. obtusifolia subsp. regis-jubae and E. lamarckii subsp. regis-jubae.[2]
E. regis-jubae has regularly been misidentified. The illegitimate name Euphorbia obtusifolia Poir. has been used "indiscriminately" for two species found in the Canary Islands: the eastern E. regis-jubae, and the western E. lamarckii. In 2003, David Bramwell listed seven publications from 1847 to 1993 that gave the wrong names or the wrong distributions for these two species.[6]
Distribution
[edit]Euphorbia regis-jubae is native to the eastern Canary Islands – Gran Canaria, Lanzarote and Fuerteventura, western Morocco and north-western Western Sahara.[2] Its distribution differs from that of E. lamarckii, with which it has often been confused; E. lamarckii is found in the western Canary Islands – Tenerife, north-western La Gomera, La Palma and El Hierro.[7]
References
[edit]- ^ "Appendices | CITES". cites.org. Retrieved 2024-01-17.
- ^ a b c d e f "Euphorbia regis-jubae", World Checklist of Selected Plant Families, Royal Botanic Gardens, Kew, retrieved 2018-01-29
- ^ a b González, Manuel Luis Gil (2018), "Euphorbia regis-jubae Sweet", Flora Vascular de Canarias, retrieved 2018-01-29
- ^ "Chilean wine palm". Temperate House, Kew Gardens. Board of Trustees of the Royal Botanic Gardens, Kew. Archived from the original on 23 October 2021. Retrieved 2 October 2022.
- ^ Bramwell, David & Bramwell, Zoë (2001), Wild Flowers of the Canary Islands (2nd ed.), Madrid: Editorial Rueda, pp. 208–209, ISBN 978-84-7207-129-2 (as E. broussonetii)
- ^ Bramwell, David (2003), "Observations on a proposal to conserve the name Euphorbia obtusifolia Poiret.", Botánica Macaronésica (24): 143–147, retrieved 2018-01-29
- ^ "Euphorbia lamarckii", World Checklist of Selected Plant Families, Royal Botanic Gardens, Kew, retrieved 2018-01-27