Argyroxiphium sandwicense
Argyroxiphium sandwicense, the Hawaiʻi silversword, or hinahina[2] is a species of silversword. It is endemic to Hawaii. The two subspecies are separated by geography.[3] Both subspecies are rare, threatened and federally protected.
- Haleakala silversword (A. sandwicense subsp. macrocephalum) is found on the mountain Haleakalā on the island of Maui at elevations above 2,100 m (6,900 ft). It is a federally listed threatened species.
- Mauna Kea silversword (A. sandwicense subsp. sandwicense) is found on the mountain Mauna Kea on the Hawaii Island at elevations above 2,600 m (8,500 ft). It is a federally listed endangered species. As few as 40 individuals are left.[4]
| Argyroxiphium sandwicense | |
|---|---|
 | |
| Haleakala silversword (A. sandwicense subsp. macrocephalum) | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Argyroxiphium |
| Species: | A. sandwicense |
| Binomial name | |
| Argyroxiphium sandwicense | |
Reproduction
The silversword flowers only once in its lifespan of 20 to 90 years.
Threats
One study found that it may not survive climate change.[5]
References
- Bruegmann, M.M. & Caraway, V. (2003). "Argyroxiphium sandwicense". The IUCN Red List of Threatened Species. IUCN. 208. e.T44157A10865179. doi:10.2305/IUCN.UK.2003.RLTS.T44157A10865179.en.
- "Argyroxiphium sandwicense". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved May 26, 2016.
- "Argyroxiphium sandwicense". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved January 21, 2018.
- "Comprehensive Report Species - Argyroxiphium sandwicense". explorer.natureserve.org.
- "The Hawaiian silversword: another warning on climate change". Mongabay Environmental News. May 6, 2013.
External links
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