''Tetraclea coulteri'', or Coulter's wrinklefruit, is a

perennial plant A perennial plant or simply perennial is a plant that lives more than two years. The term ('' per-'' + '' -ennial'', "through the years") is often used to differentiate a plant from shorter-lived annuals and biennials. The term is also wide ...

in the mint family ( Lamiaceae) that grows on sandy flats and coarse gravelly slopes of the

Sonoran Desert The Sonoran Desert ( es, Desierto de Sonora) is a desert in North America and ecoregion that covers the northwestern Mexican states of Sonora, Baja California, and Baja California Sur, as well as part of the southwestern United States (in Ariz ...

, from southern Arizona to western Texas and northern Mexico.Sonoran Desert Wildflowers, Richard Spellenberg, 2nd ed., 2012, Its white flowers open at night and close with the warmth of day.

References

Lamiaceae {{Lamiaceae-stub