Ute lady?s tresses (Spiranthes diluvialis) is a perennial plant (orchid) that has a single stem ~20-50 cm tall, bearing white to ivory flowers with linear petals. The leaves are mainly basal, and the roots are tuberous. Ute lady?s tresses was designated as Endangered by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC) as it only occurs in two locations, one of which contains a single individual (COSEWIC 2018). Threats include invasive species, altered hydrology, recreational trampling, livestock grazing, and potential chemical spills, oil spills or herbicide drift. It is currently not listed as Endangered in Canada on Schedule 1 of the Species at Risk Act (SARA). In British Columbia, Ute lady?s tresses is ranked S1 (critically imperiled) by the Conservation Data Centre. There are two populations in southern British Columbia: one at Mahoney Lake and the other on Osoyoos Lake. These populations are approximately 25 km apart and occur in the ponderosa pine (PPxh: very dry hot subzone) and bunchgrass (BGxh: very dry hot subzone) biogeoclimatic zones. The following is the recovery (population and distribution) goal: to recover Ute lady's tresses in Canada by improving resilience and redundancy through addressing human-caused threats to known populations, and to any new populations that may be discovered in the future. The following are the recovery objectives: to secure protection for the extant populations of Ute lady?s tresses with no loss or degradation of occupied habitat throughout the British Columbia range; to determine Ute lady?s tresses population trends (e.g., regular monitoring of populations); and to assess the extent of threats (e.g., invasive plants) to the extant populations and the species? habitat and to mitigate their impacts, and; to confirm the distribution of Ute lady?s tresses including new locations by inventorying suitable habitat for additional populations.
B.C. Ministry of Environment and Climate Change Strategy. 2021. Recovery Plan for Ute Lady's Tresses (Spiranthes diluvialis) in British Columbia. B.C. Ministry of Environment and Climate Change Strategy
Keywords: Recovery plan, Ute lady's tresses, spiranthes diluvialis, BC, British Columbia, orchid, species at risk, endangered, red list, perennial plant, Mahoney Lake, Osoyoos lake
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