Mentzelia leucophylla, known by the common name Ash Meadows blazingstar, is a rare species of flowering plant in the Loasaceae.

[2] Mentzelia leucophylla is a biennial or perennial herb growing up to 0.5 metres (1.6 ft) tall.

[2][3] Ash Meadows is a stretch of desert floor with areas of wetland habitat kept moist by springs and seeps originating from a supply of groundwater under the Amargosa Valley.

[4] For many decades the Ash Meadows area has been disturbed by a number of human activities, including peat mining, construction of roads, real estate development, and agricultural practices such as plowing, water diversion, and grazing.

[2] The pumping of groundwater proved to be a serious threat, as it lowered the high water table that supports the ecosystem.