There are approximately 150 species of rare plants in the Capital Regional District of British Columbia. Many of these plants occur on the hills, coastal bluffs, headlands, and islands where there
are Garry Oak woodlands and associated ecosystems (e.g. maritime meadows), and where they cope with mild frosts and ample moisture in winter, summer drought, sea spray and wind.
Less than 5% of these ecosystems remain in near-natural
conditions compared to 150 years ago. They also have a very limited distribution in Canada (SW British Columbia), where they are threatened by urbanization, invasive exotic plants, trampling by humans and dogs, and overabundant black-tailed deer and
Many of these rare plants and ecosystems of national interest occur in or on the edge of Victoria Harbour Migratory Bird Sanctuary (e.g. Macauley Point, Dallas Bluffs, Harling Point and Trial Islands).