[5] The Astragalus holmgreniorum is a herbaceous non-woody perennial that produces small purple flowers during the spring.

[6] This stem-less perennial grows close to the ground and after flowering, it dies back to the root crown.

[6] Astragalus holmgreniorum grows close to the ground with its leaves pinnately compound, on opposite sides of the stem in a row.

The seeds are dormant at maturity and they lose their hard seededness over a period of 10 or more years in the soil.

Seeds are dispersed by insect visitation, pollination, water, and smaller ground-dwelling birds.

Native bees such as Anthophora coptognatha, Anthopora dammersi, Anthopora porterae, Eucera quadricincta, Osmia titusi, two types of Dialictus species, and the introduced honeybee, Apis mellifera, are the primary visitors and pollinators of A.

[10] Astragalus holmgrenorium requires appropriate soils, geological layers, slope, drainage and plant community within the landscape to provide space for individual and population growth.

The landscape has small and large hills, along with plateau formations that are broken up by water erosion.

[10] Astragalus holmgreniorum occurs at elevations from 2480 to 3000 ft, and is found slightly above or on the edge of drainage areas.

[12] The small population sizes and range of A. holmgreniorum make the species highly vulnerable to both natural disruptions and human activity.

[3] The main source of habitat loss and fragmentation within the known populations is the urban development and expansion of St. George, Utah.

Proposed plans include multi-use developments of high-density residential areas with commercial and industrial sites.

[3] Use of ORV off designated paths and dirt roads damages hills and plateaus where A. holmgreniorum are most often found.

Cheatgrass (Bromus tectorum) and red brome (Bromus madritensis), living in broken soils across the Mojave Desert, grow in abundance and dry quickly, leading to fires over large areas.

A. holmgreniorum is capable of self-pollination, but the presence of pollinators makes it easier for the plants to create seeds and spread.

Habitat fragmentation caused by road production also leads to more pollinators dying by car collisions.

A. holmgreniorum was federally listed as endangered in October 2001 after a final rule making publication in September 2001.

The recovery goal for A. holmgreniorum is to have a large enough population that the plant can survive without conservation efforts from the ESA.

There are five main objectives that the criteria for delisting fall under and are necessary for the criteria to be met: Because of the small geographic range and population size of A. holmgreniorum, the top priority is to keep the current population size and range of A. holmgreniorum.

[3] The FWS has approved 6289 acres of land for critical habitat along the Arizona-Utah State border.

The current recovery status of the species is poor—the threats continue to outrank the conservation efforts made.