Dypsis onilahensis

Life-forms

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Monocots
Cladus: Commelinids
Ordo: Arecales

Familia: Arecaceae
Subfamilia: Arecoideae
Tribus: Areceae
Subtribus: Dypsidinae
Genus: Dypsis
Species: Dypsis onilahensis
Name

Dypsis onilahensis (Jum. & H.Perrier) Beentje & J.Dransf., 1995
Synonyms

Chrysalidocarpus brevinodis H.Perrier
Chrysalidocarpus midongensis Jum.
Chrysalidocarpus onilahensis Jum. & H.Perrier

Distribution
Native distribution areas:

Continental: Africa
Regional: Western indian icean
Madagascar

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
References
Primary references

Beentje, H. & Dransfield, J., 1995. Palms Madagascar: 207

Links

Govaerts, R. et al. 2020. Dypsis onilahensis in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2020 Dec 07. Reference page.
International Plant Names Index. 2020. Dypsis onilahensis. Published online. Accessed: Dec 07 2020.
Tropicos.org 2020. Dypsis onilahensis. Missouri Botanical Garden. Published online. Accessed: 07 Dec 2020.
Catalogue of Life: 2021 Annual Checklist
IUCN: Dypsis onilahensis (Jum. & H. Perrier) Beentje & J. Dransf. (Vulnerable)

Vernacular names

Dypsis onilahensis is a species of palm tree in the family Arecaceae.[3] It is endemic to Madagascar as is reflected in the species name (onilahensis) referring to the Onilahy River, south of Toliara. It is threatened by habitat loss.

Description

Dypsis onilahensis is a pinnate leaved, clustering palm typically growing in clusters of 3 - 10 trees with adult trees in ideal conditions growing to 10 – 20 m high in height with stems of around 15 cm in diameter. Stems are typically grey at the base and dark green towards the crown with ringed bands and surrounding the circumference of the stem. Leaves grow up to 2 m in length with up to 70 pinnae (leaflets) of 30 cm or more and arch pendulously downwards giving the palm a graceful weeping appearance.
Habitat

Dypsis onilahensis is native to North West and West Madagascar as well as South-Central Madagascar. In the northern part of its range it may be found growing in riverine forest at between 50 – 300 m altitude and between 750m - 2400 m in riverine or evergreen forest remnants in the central mountains and southern parts of its range.
Conservation

It is classed as vulnerable in the wild. Although its potential native range is large the habitat is prone to destruction by fire. Numbers are estimated at less than a thousand. A population in the Isalo National Park is well-protected, but numbers less than a few hundred individuals. Outside of Madagascar D. onilahensis is fairly common in cultivation in sub-tropical and warm temperate climates including South Africa, California, southern Florida and Australia.
References

Rakotoarinivo, M.; Dransfield, J. (2012). "Dypsis onilahensis". IUCN Red List of Threatened Species. 2012: e.T38550A2877643. doi:10.2305/IUCN.UK.2012.RLTS.T38550A2877643.en. Retrieved 15 November 2021.
"Dypsis onilahensis (Jum. & H.Perrier) Beentje & J.Dransf". World Flora Online. The World Flora Online Consortium. n.d. Retrieved August 21, 2020.

"Dypsis onilahensis (Jum. & H.Perrier) Beentje & J.Dransf". Plants of the World Online. The Trustees of the Royal Botanic Gardens, Kew. n.d. Retrieved August 21, 2020.

Dransfield, J. & Beentje, H. 1995. The Palms of Madagascar. Royal Botanic Gardens, Kew and The International Palm Society.