Stenogyne kanehoana

Stenogyne kanehoana is a rare species of flowering plant in the mint family known by the common name Oahu stenogyne.[2] It is endemic to Hawaii, where it is known only from the Waianae Range on the island of Oahu.[1] It is a federally listed endangered species of the United States.

Flowers

Stenogyne kanehoana

Possibly Extinct  (NatureServe)[1]
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Lamiaceae
Genus: Stenogyne
Species:
S. kanehoana
Binomial name
Stenogyne kanehoana
O. Deg. & Sherff

This plant was feared extinct when the last known individuals died in 1996. Six plants were discovered in 2000, but by 2005 these were also dead. As of 2004 there was only a single individual remaining in the wild, a very large plant spanning over four meters which may actually be more than one individual growing together. Cuttings have been collected from this plant.[3]

This Hawaiian mint is a woolly vine which can reach 1 or 2 meters in length. The woolly leaves are up to 14 centimeters long by 4.8 wide. The plant produces tubular flowers which may be over 4 centimeters long. They are white or yellowish with purple-pink lips.[1] The plant reproduces vegetatively, rooting where the stems contact the substrate and growing up new, cloned plants.[3]

References
  1. Stenogyne kanehoana. The Nature Conservancy.
  2. "Stenogyne kanehoana". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 2 December 2015.
  3. USFWS. Stenogyne kanehoana Five-year Review. January 2008.


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