Rare Plants of Saskatchewan
The Saskatchewan Conservation Data Centre tracks all vascular plant species in the province and assigns regional rarity rankings for each species. To learn more about that process follow the link below.
Currently the province has 1785 vascular plants listed, with 1387 native species and the remainder being considered exotic. Saskatchewan's regional ranking goes from S1 to S5, with S1 being extremely rare/ critically imperiled and S5 being common and secure. Plants that are considered rare for the province fall in the categories of S1 through S3, which is 510 species.