[3] This plant is endemic to the Arkansas River Valley in Fremont and Pueblo Counties in Colorado.

[3] This species grows in an arid river valley which gets hot during the summers.

Summer is generally the wettest season in this region, and it is the time when the plant experiences most of its growth.

[3] This species can be found growing with rare plants such as Parthenium tetraneuris and Mirabilis rotundifolia.

Development is occurring in the Arkansas River Valley, and this has consumed potential habitat for the plant.