''Parkinsonia florida'', the blue palo verde ( syn. ''Cercidium floridum''), is a species of palo verde native to 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 Arizona ...

s in the

Southwestern United States The Southwestern United States, also known as the American Southwest or simply the Southwest, is a geographic and cultural region of the United States that generally includes Arizona, New Mexico, and adjacent portions of California, Colorado, Ne ...

and Northwestern

Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...

.Calflora Database: ''Parkinsonia florida''
accessed 4.1.2013 Its name means "green pole or stick" in Spanish, referring to the green trunk and branches, that perform

photosynthesis Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities. Some of this chemical energy is stored i ...

Description

''Parkinsonia florida'' grows to heights of . It is a rapidly growing large shrub or small

tree In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are ...

, and rarely survives to 100 years. Compared to the closely related ''

Parkinsonia microphylla ''Parkinsonia microphylla'', the yellow paloverde, foothill paloverde or little-leaved palo verde; syn. ''Cercidium microphyllum''), is a species of palo verde. It is native to the Southwestern United States in southeastern California and so ...

'' (foothill paloverde), it appears more decumbent in overall form, is taller, and matures more quickly. The plant's trunk, branches, and leaves are gray-green in color, hence the common name. The plant is drought-deciduous, shedding its foliage for most of the year, leafing out after rainfall.

Photosynthesis Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities. Some of this chemical energy is stored i ...

is performed by the gray-green branches and twigs, regardless of absent leaves.Lady Bird Johnson Wildflower Center Native Plant Information Network (NPIN)
. accessed 4.1.2013 The flowers are bright yellow, and

pea The pea is most commonly the small spherical seed or the seed-pod of the flowering plant species ''Pisum sativum''. Each pod contains several peas, which can be green or yellow. Botanically, pea pods are fruit, since they contain seeds and d ...

-like, which cover the tree in late spring. They attract

pollinator A pollinator is an animal that moves pollen from the male anther of a flower to the female stigma of a flower. This helps to bring about fertilization of the ovules in the flower by the male gametes from the pollen grains. Insects are the maj ...

s such as bees,

beetle Beetles are insects that form the order Coleoptera (), in the superorder Endopterygota. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 400,000 describ ...

s, and

flies Flies are insects of the order Diptera, the name being derived from the Greek δι- ''di-'' "two", and πτερόν ''pteron'' "wing". Insects of this order use only a single pair of wings to fly, the hindwings having evolved into advanced ...

. They are followed by seed pods which are slightly larger and flatter and have harder shells than the foothill paloverde. These are a food source for small rodents and birds.

Distribution

This plant is primarily found in the Sonoran

Colorado Desert California's Colorado Desert is a part of the larger Sonoran Desert. It encompasses approximately , including the heavily irrigated Coachella and Imperial valleys. It is home to many unique flora and fauna. Geography and geology The Colorado De ...

of southeastern

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

, and the Sonoran Deserts of southern

Arizona Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Fou ...

and of northwestern

Sonora Sonora (), officially Estado Libre y Soberano de Sonora ( en, Free and Sovereign State of Sonora), is one of the 31 states which, along with Mexico City, comprise the Administrative divisions of Mexico, Federal Entities of Mexico. The state is d ...

state (Mexico). It is found predominantly in desert washes or '' bajadas'', a result of its need for water, although occasionally it can be found in

creosote Creosote is a category of carbonaceous chemicals formed by the distillation of various tars and pyrolysis of plant-derived material, such as wood or fossil fuel. They are typically used as preservatives or antiseptics. Some creosote types were ...

desert scrub habitat, accessing

seep A seep or flush is a moist or wet place where water, usually groundwater, reaches the earth's surface from an underground aquifer. Description Seeps are usually not of sufficient volume to be flowing beyond their immediate above-ground location. ...

s in desert hills up to .Jepson
accessed 4.1.2013 Also found in the far eastern

Mojave Desert The Mojave Desert ( ; mov, Hayikwiir Mat'aar; es, Desierto de Mojave) is a desert in the rain shadow of the Sierra Nevada mountains in the Southwestern United States. It is named for the indigenous Mojave people. It is located primarily in ...

of California in the northern Lower Colorado River Valley, and occasionally in the Mojave's mountains.

Uses

Native American

The plant's beans were used as a food source, and wood for carving ladles, by the

indigenous Indigenous may refer to: *Indigenous peoples *Indigenous (ecology), presence in a region as the result of only natural processes, with no human intervention *Indigenous (band), an American blues-rock band *Indigenous (horse), a Hong Kong racehorse ...

Quechan The Quechan (or Yuma) ( Quechan: ''Kwatsáan'' 'those who descended') are a Native American tribe who live on the Fort Yuma Indian Reservation on the lower Colorado River in Arizona and California just north of the Mexican border. Despite th ...

, Mojave, and

Pima Pima or PIMA may refer to: People * Pima people, the Akimel O'odham, Indigenous peoples in Arizona (U.S.) and Sonora (Mexico) Places * Pima, Arizona, a town in Graham County * Pima County, Arizona * Pima Canyon, in the Santa Catalina Mountains ...

people. The Pima and

Tohono Oʼodham The Tohono Oʼodham (; Oʼodham: ) are a Native American people of the Sonoran Desert, residing primarily in the U.S. state of Arizona and the northern Mexican state of Sonora. The federally recognized tribe is known in the United States as t ...

both ate the beans when soft and immature and cooked whole; they also ground the ripe seeds into flour to eat as

atole ''Atole'' (, from Nahuatl '' ātōlli'' ), also known as ''atolli'' and ''atol de elote'', is a traditional hot corn- and masa-based beverage of Mexican origin. Chocolate ''atole'' is known as ''champurrado'' or ''atole''. It typically accom ...

or gruel. The flowers are sweet and edible either fresh or cooked.

Cultivation

''Parkinsonia florida'' is cultivated as an

ornamental plant Ornamental plants or garden plants are plants that are primarily grown for their beauty but also for qualities such as scent or how they shape physical space. Many flowering plants and garden varieties tend to be specially bred cultivars that i ...

and tree by specialty

plant nurseries A nursery is a place where plants are propagated and grown to a desired size. Mostly the plants concerned are for gardening, forestry or conservation biology, rather than agriculture. They include retail nurseries, which sell to the general p ...

, for planting as a

shrub A shrub (often also called a bush) is a small-to-medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees ...

or multi-trunked small tree in

drought tolerant Drought tolerance is the ability to which a plant maintains its biomass production during arid or drought conditions. Some plants are naturally adapted to dry conditions'','' surviving with protection mechanisms such as desiccation tolerance, detox ...

and

wildlife garden A wildlife garden (or wild garden) is an environment created by a gardener that serves as a sustainable haven for surrounding wildlife. Wildlife gardens contain a variety of habitats that cater to native and local plants, birds, amphibians, rep ...

s of suitable climates.Las Pilitas Horticultural Treatment
/ref> It offers an unusual green-blue silhouette in gardens, and delicately patterned light shade over

patio A patio (, from es, patio ; "courtyard", "forecourt", "yard", "little garden") is an outdoor space generally used for dining or recreation that adjoins a structure and is typically paved. In Australia the term is expanded to include roofed str ...

Taxonomy and symbols

The Irish botanist

Thomas Coulter Thomas Coulter (1793–1843), of Dundalk, was an Irish physician, botanist and explorer. He was a member of the Royal Irish Academy, a fellow of Trinity College, Dublin, and founder of that college's herbarium. After completing a medical de ...

was the first to categorize ''Parkinsonia florida''. He obtained specimens near

Hermosillo Hermosillo (), formerly called Pitic (as in ''Santísima Trinidad del Pitic'' and ''Presidio del Pitic''), is a city located in the center of the northwestern Mexican state of Sonora. It is the municipal seat of the Hermosillo Municipality, Her ...

, in Sonora, Mexico, in 1830. The blue palo verde is the

state tree This is a list of U.S. state, federal district, and territory trees, including official trees of the following of the states, of the federal district, and of the territories. Table See also * List of U.S. state, district, and territorial insign ...

. In 1966, it was also named the "city tree" of

South Miami, Florida South Miami is a city in Miami-Dade County, Florida in the Miami metropolitan area. The population was 11,657 at the 2010 census and as of 2019, according to the U.S. Census Bureau, was 11,911. South Miami's central business district is directl ...

References

External links

* *
USDA Plants Profile for ''Parkinsonia florida'' (blue paloverde)
*
Jepson Manual Treatment; ''Parkinsonia florida''

Calflora Database: ''Parkinsonia florida'' (blue paloverde)

Arizona State Tree: Blue paloverde
''(pdf file)''
''Parkinsonia florida''; U.C. Photo gallery
{{Taxonbar, from=Q2052735

florida Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, and to ...

Trees of the Southwestern United States Symbols of Arizona Plants described in 1830 Edible legumes Bird food plants Plants used in Native American cuisine Garden plants of North America Drought-tolerant trees Ornamental trees Flora without expected TNC conservation status