In British Columbia, waterplantain buttercup (Ranunculus alismaefolius var. alismaefolius) has been documented from three collection sites, all restricted to southeastern Vancouver Island. Two of these sites were recorded at vague locations and are either extirpated or are earlier records of extant sites. The single extant location represents the northern range limits of R. alismaefolius var. alismaefolius, which extends southward to northern California. This taxon inhabits open moist, often muddy, sites and is limited to a lowland Garry oak-Brome (Quercus garryana -Bromus) meadow, a vegetation community unique to south eastern Vancouver Island, and limited in area. The extant location of R. alismaefolius var. alismaefolius is divided between two small groups, both of which exist alongside footpaths within a regional city park, making them vulnerable to trampling or destruction from park management activities. Other threats include limited potential habitat, fire suppression and competition from introduced sp
Illingworth, Jeanne M., Douglas, George W.. 1999. Status of Water-plantain Buttercup in British Columbia. Ministry of Environment, Lands and Parks. Species Status Report. B95
Topic: Species status
Keywords: water-plantain buttercup, ranunculus alismifolius, species, status
Scientific Name: Ranunculus alismifolius var. alismifolius
English Name: Water-plantain Buttercup
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