A narrow endemic of Mesa Verde National Park in the southwestern corner of Colorado. Restricted to specific soil and geologic conditions. The estimated population size is 5,000-11,000 individuals.
Threats include visitor trampling and high mortality of seedlings. Seedlings are susceptible to June droughts and July heat (Fiero 1987).
There is a total population of 11,000+ individual plants within Mesa Verde National Park (Peterson 1981).
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