Greenman's desert parsley is a subalpine species found in meadows or rocky outcroppings. Plants occur on sedimentary soils or basalt substrate.
Greenman's desert parsley is naturally rare. This localized endemic has four known occurrences on three mountain peaks in the Wallowa Mountains. One site is near a nature trail that is accessible by aerial tram and is vulnerable to unintentional trampling.
Conduct reproductive and pollination biology studies. Assess seed germination. Develop propagation and transplanting protocols. Evaluate the impacts of grazing and other potential disturbances on this species.
Construction of pathways has reduced impacts. Continue to manage recreational use to minimize trampling.