Garry oak (Quercus garryana) is a species of restricted range in Canada and North America, with three varieties recognized in Flora North America (Q. garryana var. garryana, Q. garryana var. breweri, and Q. garryana var. semota). In British Columbia, Garry oak ecosystems (GOE) are red-listed ecosytems that support high numbers of blue- and red-listed species of flora and fauna. These ecosystems occur globally only along a narrow portion of the extreme western US and adjacent Canada. Distribution maps of Garry oak sites globally and in British Columbia and Canada are available. Throughout their range, these ecosystems are threatened by urban development and severe habitat loss. The recognition of the significant contribution of garry oak ecosystems to global, national and regional biodiversity has led to the development of a recovery team (GOERT) in Canada that aims to protect and, where possible, restore them.