Utah Species Field Guide | Utah Natural Heritage Program
Utah Species Field Guide Utah Species Field Guide
Paradox Milkvetch (Astragalus holmgreniorum)

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Photo by Renee Van Buren; Bill Gray; Bill Gray; Black Wellard
Photo Copyright Renee Van Buren; Utah Division of Wildlife Resources; Sources: ESRI, USGS, NOAA; Sources: ESRI, USGS, NOAA

Paradox Milkvetch

Paradox Milkvetch (Astragalus holmgreniorum)

Photo by Renee Van Buren; Bill Gray; Bill Gray; Black Wellard
Photo Copyright Renee Van Buren; Utah Division of Wildlife Resources; Sources: ESRI, USGS, NOAA; Sources: ESRI, USGS, NOAA

Astragalus holmgreniorum

NatureServe conservation status

Global (G-rank): G1
State (S-rank): S1

External links

Phenology

Flowers in April and May.

Species range

A Virgin-Mohave endemic, found in Washington County, Utah and Mohave County, Arizona. 

Threats or limiting factors

Habitat loss due to development is a primary threat to this species (USFWS 2021). Threatened by highway and power line construction, urban development, recreation, grazing and displacement by introduce plants (Harper 1997, Stubben 1997, USFWS 2000, USFWS 2021). Several populations are in decline due to impacts from threats acting on these species singly or in combination (Van Buren et al. 2016, Searle and Meyer 2020, USFWS 2021) Significant portions of the habitat of this species are subject to disturbance from these threats (USFWS USFWS 2000).

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Multicellular organisms that are autotrophic or make complex carbohydrates from basic constituents. Most use photosynthesis.

Flowering plants that produce seeds enclosed in an ovary

Multicellular organisms that develop from the fertilization of an egg by a sperm. Heterotrophic - obtain food by ingestion.

Have skulls and backbones.

Cold blooded, lay eggs on land

Have feathers and lay eggs

Invertebrates with an exoskeleton, jointed appendages, and segmented bodies

Animals having 3 pair of legs, 3 body sections, generally 1 or 2 pair of wings, 1 pair of antennae.

Soft bodied animals with an internal or external shell and a toothed tongue or radula. Have a mantle that lines and secretes the shell and a muscular foot that allows for movement.

Two hinged lateral shells and a wedged shaped "foot". Bivalves lack tentacles and a head.


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