Zanthoxylum hawaiiense

Zanthoxylum hawaiiense, commonly known aʻe or Hawaiʻi pricklyash, is a species of flowering plant in the family Rutaceae, that is endemic to Hawaii. It can be found at elevations of 550–1,740 m (1,800–5,710 ft) in dry forests, where it grows on lava flows, and mixed mesic forests on the Island of Hawaiʻi, Maui, Molokaʻi, and Lānaʻi.[2] It is threatened by habitat loss.  

Zanthoxylum hawaiiense
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Sapindales
Family: Rutaceae
Genus: Zanthoxylum
Species:
Z. hawaiiense
Binomial name
Zanthoxylum hawaiiense

Zanthoxylum is from the Greek ξανθὸν ξύλον, meaning "yellow wood."

This is the only genus in the citrus family (Rutaceae) with a pantropical distribution.

Zanthoxylum also colonized several Pacific Islands and the Hawaiian clade shows phylogenetic incongruence between the plastid and nuclear datasets, suggesting hybridization. The Hawaiian species are one of the rare examples of endemic Hawaiian lineages that are older than the current main islands.

References
  1. World Conservation Monitoring Centre 1998. Zanthoxylum hawaiiense Archived June 27, 2014, at the Wayback Machine. 2006 IUCN Red List of Threatened Species. Archived June 27, 2014, at the Wayback Machine Downloaded on 24 August 2007.
  2. "ae, manele, heae". Hawaiian Ethnobotany Online Database. Bernice P. Bishop Museum. Retrieved 2009-11-19.


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