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Alpine Twinpod (Physaria alpina)
Alpine Twinpod (Physaria alpina), Mustard Family (Brassicaceae); G2S2 (Imperiled in Colorado & globally; Grows in rocky areas in the alpine on the East & West slopes; blooms June-July. This species is endemic to elevations over 3350 m in the high mountains of west central Colorado (the northeastern Gunnison Basin and the Mosquito Range). The total occupied habitat is about 187 acres, with are 6 principal occurrences two of which have not been observed in over 20 years. The primary threats are considered to be off road vehicle use and hiking. Photo by Steve O'Kane