Aloe helenae
| Aloe helenae | |
|---|---|
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| |
| In cultivation in the Jardin botanique de Lyon | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Asphodelaceae |
| Subfamily: | Asphodeloideae |
| Genus: | Aloe |
| Species: | A. helenae
|
| Binomial name | |
| Aloe helenae Danguy[3]
| |
Aloe helenae is a species of plant in the genus Aloe. It is endemic to Madagascar, and is an endangered species.
Description
[edit]Aloe helenae in the wild grows to about 4 m (13 ft) and does not usually offset, although it is known to do so in cultivation. The trunk has a rosette of leaves at the top. These are channeled and recurved, usually green but may have red tones in bright light or when stressed by drought. The inflorescence consists of racemes, each under 30 cm (1 ft) long. The flower buds are red, opening with pale yellow petals.[4][5]
Taxonomy
[edit]Aloe helenae was first described by Paul Auguste Danguy in 1929.[3] The specific epithet honors Helen Decary, the wife of Raymond Decary,[4] who was the first to describe a number of Madagascan succulents.[6]
Distribution
[edit]Aloe helenae is native to Madagascar. It is known only from few small populations in the former Toliara Province in the southwest of Madagascar. It grows in spiny forests in sandy soils.[4] It is classified as "endangered" in the IUCN Red List.[1]
References
[edit]- ^ a b Rakotoarisoa, S.E. (2016). "Aloe helenae". IUCN Red List of Threatened Species. 2016: e.T39056A69007588. doi:10.2305/IUCN.UK.2016-3.RLTS.T39056A69007588.en. Retrieved 16 November 2021.
- ^ "Appendices | CITES". cites.org. Retrieved 2022-01-14.
- ^ a b "Aloe helenae Danguy". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2025-01-25.
- ^ a b c "ISI 2019-16. Aloe helenae P. Danguy". International Succulent Introductions of the Huntington Botanical Gardens. The Huntington Library, Art Museum, and Botanical Gardens. 2023. Retrieved 2025-01-24.
- ^ "Aloe helenae". www.smgrowers.com. Retrieved 2025-01-24.
- ^ "Decary, Raymond". International Plant Names Index. Retrieved 2025-01-25.