Scotts Valley Polygonum (Polygonum hickmanii) is an endangered annual species known from a single extant population. With steeply declining numbers of plants in situ and few seeds in storage, we used a close relative to confirm our germination technique and nursery protocols to grow for seed production. We were successful in producing over 90,000 seeds […]
Polygonum hickmanii flowering in the UCBG nursery. […]
Holly Forbes, University of California Botanical Garden at Berkeley Polygonum hickmanii (Scotts Valley polygonum) is a small annual species in the buckwheat family (Polygonaceae) restricted to a small area of Scotts Valley, Santa Cruz County, California. Populations have historically occurred across three privately owned properties. Population numbers were critically low in 2009 when the 5-Year Review […]