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Parkinsonia microphylla

Parkinsonia microphylla Torr.

Cercidium microphyllum (Torr.) Rose & I.M. Johnst.

Foothills Palo Verde, Yellow Paloverde

KingdomPlantaePlants, but not fungi, lichens, or algae (from Stearn’s Botanical Latin)
SubkingdomTracheobiontaVascular plants—plants with a “circulatory system” for delivering water and nutrients
DivisionMagnoliophytaFlowering plants, also known as angiosperms
ClassMagnoliopsidaDicotyledons—plants with two initial seed leaves
SubclassRosidaeRoses, legumes, proteas, dogwoods, hydrangeas, mistletoes, euphorbias, grapes, many more
OrderFabalesLegumes (pea and bean families)
FamilyFabaceaeLegume family (peas and beans)
GenusParkinsoniaNamed for John Parkinson, author, botanist, Apothecary of London and king’s herbalist to James I
Speciesmicrophylla“Small-leaved”

About plant names...

The yellow palo verde is native to the Sonoran Desert. Although it typically looses its leaves in the punishing summer heat, its trunk and branches are photosynthetic. It also has deep roots so it can reach any available water.

Identification: The most notable difference between this palo verde and blue palo verde is the trunk and branch color. Foothills palo verde is yellow-green, vs. a bluish cast to blue palo verde.

 

Parkinsonia microphylla (Foothills Palo Verde, Yellow Paloverde)

2/17/2007 · Anza-Borrego Desert State Park, CA

 
Parkinsonia florida
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Parkinsonia microphylla
Common Name

Blue Palo Verde

Foothills Palo Verde
Plant 15-30' (4.6-9.1 m). Trunk and branches are bluish green, photosynthetic. 10-20' (3-6.1 m) high, and about the same around. Bark is smooth and yellow-green in color.
Flowers

 

Bright yellow, blooming earlier than foothills palo verde. Photo by Stan Shebs.

 

Yellow. Photo by aspidoscelis (Flickr).
Leaves Bipinnate, with leaflets ⅛-¼" (3.2-6.3 mm) long; often leafless. In small pinnate stalks up to 1" (2.5 cm), containing a row of tiny, round leaflets. Dropped entirely during droughts.
Fruit A flat pod with one or more seeds, brown, turning white with age, up to 3" (7.6 cm) long. 2-3" (5-7.6 cm) seed pods contain up to five seeds.
Range/ Zones

Habitats Creosote bush scrub, below 3600' (1.1 km) Mohave and Sonoran deserts of Arizona, California, and Baja Mexico; at up to 4000' (1.2 km)
Type Wild Wild

 

Online References:

Parkinsonia microphylla at Southeastern Arizona Wildflowers and the Plants of the Sonoran Desert

Parkinsonia microphylla on Blue Planet Biomes

Parkinsonia microphylla as Compiled by the Master Gardeners of the University of Arizona Pima County Cooperative Extension

Parkinsonia microphylla at the Lady Bird Johnson Wildflower Center

Parkinsonia microphylla on CalPhotos

Parkinsonia microphylla on Wikimedia Commons

Parkinsonia microphylla at the Vanderbilt University Bioimages web site

Parkinsonia microphylla on Desert-tropicals.com

Parkinsonia microphylla at the Arizona Sonora Desert Museum Sonoran Desert Digital Library

Parkinsonia microphylla on Desert Connections

Parkinsonia microphylla on Wikipedia

Parkinsonia microphylla on jan.ucc.nau.edu

Parkinsonia microphylla on the USDA Forest Service's Fire Effects Information Database

Parkinsonia microphylla (Foothills Palo Verde, Yellow Paloverde)

5/25/2009 · Boyce Thompson Arboretum, Superior, AZ
≈ 5 × 7½' (1.6 × 2.4 m)

Parkinsonia microphylla (Foothills Palo Verde, Yellow Paloverde)

2/28/2010 · Anza-Borrego Desert State Park, CA

Parkinsonia microphylla description by Thomas H. Kent, last updated 16 Aug 2013.

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Parkinsonia microphylla (Foothills Palo Verde, Yellow Paloverde)

2/28/2010 · Anza-Borrego Desert State Park, CA
≈ 3½ × 2½' (1.2 × 0.8 m)

Parkinsonia microphylla (Foothills Palo Verde, Yellow Paloverde)

2/28/2010 · Anza-Borrego Desert State Park, CA
≈ 17 × 12" (44 × 29 cm)

Range:

About this map...