Tree

Palo Verde

Parkinsonia spp.

Height: Varies by species
Bloom Season: Spring
Water Needs: Very low

About this plant

Palo verdes (pronounced PAH-loh VER-day) are distinctive desert trees and shrubs known for their green, photosynthetic bark; a remarkable adaptation that allows them to continue producing energy even when their small leaves drop during drought. These drought-deciduous plants are well-adapted to arid conditions, with multiple palo verde species occurring throughout the Sonoran Desert. They produce clusters of bright yellow, pea-like flowers in spring, followed by bean-like seed pods. The appearance of palo verdes can vary by species and environmental conditions, with some growing as small trees and others as larger shrubs. Their green bark is one of their most distinctive features, making them easily recognizable even when leafless. Palo verdes play an important role in desert ecosystems, providing food and shelter for wildlife, and their flowers are an important nectar source for pollinators during spring blooms.

More info

Photo gallery

Lakeside Palo Verde

Early-season palo verde blooms starting to show on a lakeside tree.

Flowers Closeup2

Blooming palo verde branch with fresh yellow flowers and fine green stems.

Flowers Closeup3

Close-up of clustered palo verde flowers with early pod formation.

Flowers Closeup

Macro-style close-up of palo verde blossoms and green photosynthetic branches.

Full Tree2

A vigorous palo verde with a full canopy and bright green trunk and branches.

Full Tree

Mature palo verde showing dried seed pods after flowering.

Bean Pods

Dried palo verde seed pods, often persisting on the tree after the bloom season.

Palo Verde On Mountain2

A hardy palo verde surviving harsh, dry conditions on rocky terrain.

Palo Verdes On Mountain

Wild palo verdes growing in exposed, dry habitat during a leaf-sparse season.

Quick ID Checklist

Green bark and green branches (photosynthesize even when leafless)
Small compound leaves; airy canopy
Yellow flowers in spring (timing varies by species and rain)
Common as a "nurse tree" for young desert plants
As palo verdes age, their bark can turn gray and deeply textured, sometimes resembling reptile skin.

Seasonal Notes

Often blooms in spring; some species can bloom again after summer rains. Leaves may drop during drought while green stems continue photosynthesis.

Uses

Frequently used in desert landscaping for light shade and habitat value. Traditionally valued in the region for practical uses; this site treats uses as educational rather than instructional.

Ethics + Disclaimers

Respect nesting wildlife and avoid disturbing trees during bloom. Educational reference only; not medical advice.

Wildlife Value

Important nectar source for pollinators during bloom. Provides shade and microclimate that helps seedlings and understory plants establish.

Interesting Facts

"Palo verde" is Spanish for "green stick," referring to the tree's green, photosynthetic bark.
As a nurse plant, palo verde can improve survival odds for young cacti by reducing heat and sun stress.
They can survive without any leaves.
They do photosynthesis through their green trunk.
Even when the trunk no longer looks green, it is still capable of photosynthesis.