Fauna
Plant

Foothill Palo Verde

Parkinsonia microphylla

Also known as Yellow Paloverde, Little-leaved Palo Verde, Foothill Paloverde

Foothill palo verde is an iconic Sonoran Desert tree famous for photosynthesizing through its yellow-green bark when drought forces leaf drop. In late spring, branches explode in pale yellow flowers with white top petals that attract native bees. Its spiny branchlets create a sheltered microclimate, acting as a crucial nurse plant for seedling saguaro cacti.

AridDesert Nurse PlantFlowering Tree
—observations
—countries
—peak records
Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Diet & preyAutotrophic (Photosynthetic)
Predators
  • Javelina
  • Desert Bighorn Sheep
  • White-throated Woodrat
ThreatsProlonged drought, invasive buffelgrass fires, and urban expansion
HabitatsSonoran Desert hillsides, rocky slopes, and arid desert scrub
Life span100–400 years
  1. OrderFabales
  2. FamilyFabaceae
  3. GenusParkinsonia
  4. SpeciesParkinsonia microphylla
Range data is not available yet.
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Safe to observe at a normal distance; watch out for sharp twig tips.
Responsible observation
  • Spring Flowers: Look for dense pale yellow blooms from April to May across rocky desert hillsides.
  • Nurse Trees: Scan beneath mature canopies to spot juvenile saguaro cacti sheltering in the shade.
  • Bark Identification: Inspect the smooth, yellowish-green trunk bark that distinguishes it from blue palo verde.
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