Calliandra eriophylla, commonly known as fairy duster, is a low spreading shrub which is native to deserts and arid grasslands in California, Arizona, New Mexico, Texas, and Mexico.

The flowers, which appear between late winter and late spring, have dense clusters of pale to deep pink stamens and are about 5 cm (2 in) wide.

The shrub is usually between 20 and 50 cm (8 and 20 in) high and has bipinnate leaves.

Alternative common names for this species include mock mesquite and mesquitella.

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