Parkinsonia microphylla

 Parkinsonia microphylla (little-leaf palo verde) ( )

Cercidium microphyllum

Fabaceae

  • Little-leaf palo verde is a tree up to 20 feet in height that is typical of bajadas slopes. In California it is only found along the Colorado River in San Bernardino County and south to Imperial County near the Mexico border, however it is widespread across the broader Sonoran Desert outside of California. It displays a yellowish-green bark, and it lacks spines and has spine tipped branches with smaller ephemeral leaves that lack a petiole. "California Desert Plants, Philip W Rundel, Robert J Gustafson, Michael E Kauffmann."
  • This small tree of upper bajadas has five to seven pairs of leaflets and bicolor (white and yellow) flowers on branches that end in a thorn-like point. Its blooms can be just as brief as that of the blue paloverde; a duration of less than 10 days is not uncommon. This period varies from one place to another, but ranges from early March through late May. The pale yellow flowers have white banner petals. During flowering, this tree's color can dominate entire desert mountain slopes. "Arizona Highways Presents Desert Wildflowers, 1988". 

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