The following Participating Institutions are custodians for this species in the CPC National Collection:
Honolulu Botanical Gardens
The conservation of Stenogyne kanehoana is fully sponsored.
Winnie Singeo contributed to this Plant Profile.
Stenogyne kanehoana was first discovered by Harold St. John in 1934. In 1992, Stenogyne kanehoana was listed under the Endangered Species Act as Endangered: only 2-4 individuals, located on private land, were known to exist. Sometime in the years after listing, all of these plants were extirpated. From that point on, this species was assumed to be extinct, until a single, previously unknown individual was found in the wild in the year 2000. With the discovery of this one plant a number of individuals and organizations have mobilized to try to re-establish viable populations of this 'on the brink' species.
Stenogyne kanehoana is a climbing vine that is a member of the mint family, and so has stems that are square. These stems grow 1 to 2 meters long and have thin, densely hairy and oppositely arranged leaves on them. Flowers occur in clusters of 3-6 in leaf axils, and are 1 to 1.5 inches long with white to yellow lobes tipped in pink. (USFWS 1992) Fruit consists of 4 fleshy, black nutlets. (Wagner et al. 1999)
Distribution & Occurrence
Occurs on open ridge top in mesic forest.
Associated plant species include Ohia (Metrosideros polymorpha), koa (Acacia koa) ie ie (Freycinetia arborea) and uluhe (Dicranopteris linearis)
|This species was brought back from the "Extinct" list by the discovery of a single large plant in the latter part of 2000 (Koob 2001)|
Conservation, Ecology & Research
Symbiotic relationships, if any.
Optimal soil and water relationships for maintaining the species on a long-term basis.
Sherff, E.E. 1941. Additions to or knowledge of the American and Hawaiian floras. Field Museum of Natural History, Botanical Series. 22: 407-441.
USFWS. 1991. Listing Proposals--January. Endangered Species Technical Bulletin. 16, 2: 3.
USFWS. 1991. Proposal for endangered status for Stenogyne kanehoana (no common name), a Hawaiian plant. Federal Register. 56, 15: 2494-2496.
USFWS. 1992. Determination of endangered status for Stenogyne kanehoana (no common name), a Hawaiian plant. Federal Register. 57, 92: 20592-20595.
USFWS. 2002. Designations of Critical Habitat for Plant Species From the Island of Oahu, Hawaii. Federal Register. 67, 102: 37108-37156.