Acaena exigua is an extinct species of flowering plant in the rose family known by the common name liliwai.[1] It was endemic to Hawaii, where it was known from Kauaʻi and west Maui. It had not been seen or collected since 1957 and was feared extinct until 1997, when one plant was discovered in a remote montane bog on Maui.[3] The plant died in 2000, and the species is now considered extinct.[1][4]
| Acaena exigua | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Rosales |
| Family: | Rosaceae |
| Genus: | Acaena |
| Species: | †A. exigua
|
| Binomial name | |
| †Acaena exigua | |
Reason for extinction
editThe reason for extinction is unknown. While it has been ascribed to rooting by pigs, feral populations have only been present in the vicinity of the population on Kauaʻi for some twenty years, and West Maui is pig-free.[1]
References
edit- ^ a b c d Gon, S.M.; Keir, M.; Kwon, J.; Weisenberger, L.; Sporck-Koehler, M.; Chau, M. (2016) [errata version of 2016 assessment]. "Acaena exigua". IUCN Red List of Threatened Species. 2016: e.T44072A101442020. Retrieved 12 August 2024.
- ^ "Acaena exigua". NatureServe Explorer. Retrieved 12 August 2024.
- ^ Scott Meidell, J.; Oppenheimer, H.L.; Bartlett, R.T. (1998). "New Plant Records from West Maui" (PDF). Bishop Museum Occasional Papers. Records of the Hawaii Biological Survey for 1997 Part 2: Notes. 56: 6. Archived (PDF) from the original on 13 March 2024.
- ^ Torres-Santana, Christian; Bruegmann, Marie; Zablan, Marilet A.; Shultz, Gina. "Acaena exigua (Liliwai) 5-Year Review Summary and Evaluation" (PDF). United States Fish and Wildlife Service. Archived from the original (PDF) on 11 November 2012. Retrieved 12 August 2024.
External links
edit- USDA Plants Profile
- The Nature Conservancy Archived 23 November 2002 at the Wayback Machine
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