Viola helena
Viola helena | |
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Scientific classification ![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Malpighiales |
Family: | Violaceae |
Genus: | Viola |
Species: | V. helena
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Binomial name | |
Viola helena Forbes & Lydgate
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Synonyms | |
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Viola helena, commonly known as Wahiawa stream violet, is a rare species of flowering plant in the violet family. It is endemic to Hawaii, where it is known only from the Wahiawa Mountains of Kauai.[1] It is threatened by exotic plant species and feral pigs. It is a federally listed endangered species of the United States.
Description
[edit]Viola helena is a subshrub which can reach 8 meters in height. It has long, narrow leaves and pale purple or white flowers.[2]
Conservation
[edit]This species is in decline and its numbers have dropped since the 1990s. There are two populations left, one of which was decimated by a landslide in 2005, leaving only a few seedlings and a seed pod. The other population, containing seven individuals, may be sterile and is too far from the first population to interbreed with it.[1]
References
[edit]- ^ a b USFWS. Viola helenae Five-year Review. January 2008.
- ^ Viola helenae. The Nature Conservancy.