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Astragalus phoenix facts for kids

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Astragalus phoenix
Astragalus phoenix 2.jpg
Conservation status

Imperiled (NatureServe)
Scientific classification

Astragalus phoenix is a rare species of milkvetch known by the common name Ash Meadows milkvetch. It is endemic to Nye County, in southwestern Nevada.

Distribution

The plant is locally endemic to Ash Meadows, a desert oasis and wildlife refuge in the Amargosa Desert.

The habitat is made up of stark, white flats and washes in a wetland area that is fed by seeps and springs and undergoes evaporation, leaving behind a hard mineral crust on the land.

The plant grows in undisturbed areas of the crust. It can be found at about 13 sites in a seven-by-three-mile range.

It is one of several rare plants and animals endemic to the Ash Meadows—Amargosa Valley area. Other plants occurring in the area include saltgrass (Distichlis spicata), shadscale (Atriplex confertifolia), and alkali goldenbush (Isocoma acradenia).

Description

Astragalus phoenix is a perennial herb forming a flat cushion or mat up to 0.5 metres (1.6 ft) wide. The inflorescence bears one or two pink or purple flowers.

The plant is pollinated by bees of genus Anthophora, which show an affinity for it even in the presence of other flowering plants.

Conservation

Astragalus phoenix is a federally listed threatened species.

Threats to this species include the destruction of or damage to its unique habitat. Alterations in the hydrology of the region occur when pumping or other processes affects the flow of the springs and seeps. Road construction, mining operations, and agriculture reduced the plant's numbers.

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