''Eriastrum eremicum'', the desert woollystar, is an
annual plant
An annual plant is a plant that completes its life cycle, from germination to the production of seeds, within one growing season, and then dies. The length of growing seasons and period in which they take place vary according to geographical ...
in the phlox family (
Polemoniaceae) found in the
Sonoran Desert.
[Sonoran Desert Wildflowers, Richard Spellenberg, 2nd ed., 2012, ] It often grows in great abundance covering the desert floor in a blanket of sky blue color.
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References
eremicum
Flora of the Sonoran Deserts
{{Polemoniaceae-stub