Mission of the Hawaiian Rare Plant Program
To aid in the prevention of further extinction of Hawaiian plant species by initiating and maintaining an in vitro plant and seed bank collection, and propagating plants for use in approved restoration and re-introduction projects.
Lyon Arboretum's research and education emphasis on conservation biology and it's strong horticultural specialization has led to the development of the Hawaiian Rare Plant Program, which is comprised of 3 storage and propagation facilities; a micropropagation laboratory, seed germplasm laboratory, and greenhouse. Since 1992, the Hawaiian Rare Plant Program has focused on the rescue and recovery of Hawai`i's most critically endangered native plants, such as the native taxa that have 50 or fewer representatives left in the wild. The Hawaiian Rare Plant Program serves as an ex situ plant and seed germplasm repository, propagation and distribution site for plant propagators, land managers, and other end users who do not possess the resources to store and propagate their Hawaiian endemic plants that are in jeopardy on their premises. Also, the Hawaiian Rare Plant Program is able to maintain viable plant germplasm for an indefinite period of time for future research or use in restoration sites. Due to its location, unique propagative methodology and affiliations, the program is Hawai`i's largest and most diverse collection of Hawaiian plant taxa.
To date, the Hawaiian Rare Plant Program micropropagation laboratory has successfully grown approximately 300 of the 1400 known Hawaiian plant taxa using micropropagation techniques, of which 136 are federally listed as endangered or threatened. Currently, there are 16,268 plants comprised of 200+ native plant taxa inventoried within the in vitro germplasm collection and greenhouse. Ninety eight (49%) of these plant taxa are federally listed as endangered, 31 (15%) are species of concern, 3 (1%) proposed endangered, and 8 (4%) of these species labeled as candidate species. In the seed storage facility over 4 million seeds are banked, from approximately 2,000 accessions. These accessions represent more than 400 taxa of native Hawaiian plants. Of these, about 168 are federally listed as threatened or endangered.