Prosopis pubescens

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Prosopis pubescens
Prosopis pubescens beans.jpg
Mature seedpods (legumes)
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Caesalpinioideae
Clade: Mimosoid clade
Genus: Prosopis
Species:
P. pubescens
Binomial name
Prosopis pubescens
Prosopis pubescens range map.jpg
Natural range
Flower spikes Prosopis pubescens inflorescence 2003-06-02.jpg
Flower spikes

Strombocarpa pubescens (formerly Prosopis pubescens), commonly known as screwbean mesquite, [2] is a species of flowering shrub or small tree in the pea family, Fabaceae, that is native to the southwestern United States (Texas, Arizona, New Mexico, California, southern Nevada and Utah) and northern Mexico (Baja California, Chihuahua, Coahuila, Sonora). [1]

Contents

Description

This plant grows to about 7 m (23 ft). It has light brown bark, usually short, straight spines 1 to 3 centimeters long, twice-compound leaves, and numerous small yellowish flowers appearing in elongate spikes. The tightly twisted seedpods (legumes) are up to 5 centimeters long and very much resemble turned screws. This morphology may have been an evolutionary defense against seed predators such as bean weevils (Bruchinae). The seeds germinate after being scarified in the digestive tracts of animals that eat them. The plant also grows in a clockwise spiral. [3]

Habitat

It is found along streams and valleys in deserts, particularly in damp or saline soil. It grows alongside common plants of this habitat type, such as arrowweed ( Pluchea sericea ) and tamarisks. [3] It can be found on playas and other areas of alkaline substrates. [3] This and other mesquite species are dominant plants in the Mesquite Bosque-mesquite woodlands, a common habitat type in the desert southwest region. [3]

Many types of animals readily eat the seedpods, including several bird and rodent species and coyotes. [3] Many species of birds nest and roost in the trees, and small mammals find shelter in thicketlike stands. [3]

Uses

Food

Like those of other Prosopis species, Screwbean Mesquite has nutritious seedpods that can be eaten. [4] The Pimas cooked the pods in dirt-covered pits over intervals of a few days. [5] Mesquite is a traditional Native American food source, being used to make meal, cakes and syrup. [4] Used as a staple food for centuries by desert dwellers, this high protein meal contains good quantities of calcium, magnesium, potassium, iron and zinc, and is rich in the amino acid lysine as well. Mesquite is high in fiber, moderate in sugar, and 8% protein. It has a sweet, rich, molasses-like flavor with a hint of caramel which blends well into smoothies or other drinks, especially those made with cacao and maca. The fruits may be used as a coffee substitute. [6]

Dried seed pods Prosopis pubescens dry seeds.jpg
Dried seed pods

Wood

Native Americans found Screwbean wood valuable for building, for making tools and weapons, and as firewood. [3] The wood is durable and considered attractive, and it may be used in woodworking. [3] Some Native Americans also used the root bark to prepare a treatment for wounds. [4]

See also

Related Research Articles

<span class="mw-page-title-main">Mesquite</span> Several species of leguminous trees

Mesquite is a common name for some plants in the genus Prosopis and Neltuma, both of which contain over 40 species of small leguminous trees. They are native to dry areas in the Americas. They have extremely long roots to seek water from very far under ground. As a legume, mesquites are one of the few sources of fixed nitrogen in the desert habitat. The trees bloom from spring to summer. They often produce fruits known as "pods". Prosopis spp. are able to grow up to 8 metres (26 ft) tall, depending on site and climate. They are deciduous and depending on location and rainfall have either deep or shallow roots. Prosopis is considered long-lived because of the low mortality rate after the dicotyledonous stage and juveniles are also able to survive in conditions with low light and drought. The Cahuilla indigenous people of western North America were known to eat the seeds of mesquite.

<i>Prosopis</i> Genus of legumes

Prosopis is a genus of flowering plants in the family Fabaceae. It contains around 45 species of spiny trees and shrubs found in subtropical and tropical regions of the Americas, Africa, Western Asia, and South Asia. They often thrive in arid soil and are resistant to drought, on occasion developing extremely deep root systems. Their wood is usually hard, dense and durable. Their fruits are pods and may contain large amounts of sugar. The generic name means "burdock" in late Latin and originated in the Greek language.

<i>Neltuma juliflora</i> Species of legume

Neltuma juliflora , formerly Prosopis juliflora, is a shrub or small tree in the family Fabaceae, a kind of mesquite. It is native to Mexico, South America and the Caribbean. It has become established as an invasive weed in Africa, Asia, Australia and elsewhere. It is a contributing factor to continuing transmission of malaria, especially during dry periods when sugar sources from native plants are largely unavailable to mosquitoes.

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<i>Neltuma glandulosa</i> Species of tree

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<i>Prosopis velutina</i> Species of tree

Prosopis velutina, commonly known as velvet mesquite, is a small to medium-sized tree. It is a legume adapted to a dry, desert climate. Though considered to be a noxious weed in states outside its natural range, it plays a vital role in the ecology of the Sonoran Desert.

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<i>Phoradendron macrophyllum</i> Species of flowering plant

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<i>Prosopis strombulifera</i> Species of legume

Prosopis strombulifera is a species of mesquite or algarrobo, a shrub in the legume family. It is known by the English common names Argentine screwbean and creeping screwbean and the Spanish common name retortuño. This shrub is native to Argentina, where it grows in arid and saline soils. It became well known in California after it was introduced to Imperial County and took hold in the wild, growing as an invasive noxious weed. The plant grows from a network of long, spreading roots and may grow to three meters in height. Many plants may grow together in an area, forming a monotypic stand. The shrub has waxy-textured leaves made up of a pair of leaflets which are each divided into several pairs of secondary leaflets each up to a centimeter long. Whitish spines up to 2 cm long appear near the leaf bases. The inflorescence is a spherical head of many very narrow tubelike yellow flowers, the head measuring about 1.5 cm wide. The fruit is a bright yellow seed pod coiled tightly into a cylindrical stick up to 5 cm long. It contains several greenish seeds, each about 0.5 cm long.

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References

  1. 1 2 "Prosopis pubescens". Germplasm Resources Information Network . Agricultural Research Service, United States Department of Agriculture . Retrieved 2010-01-03.
  2. NRCS. "Prosopis pubescens". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 14 October 2015.
  3. 1 2 3 4 5 6 7 8 "Species: Prosopis pubescens". fs.fed.us. Retrieved 4 August 2015.
  4. 1 2 3 Little, Elbert L. (1994) [1980]. The Audubon Society Field Guide to North American Trees: Western Region (Chanticleer Press ed.). Knopf. p. 501. ISBN   0394507614.
  5. Peattie, Donald Culross (1953). A Natural History of Western Trees. New York: Bonanza Books. p. 568.
  6. "UC/JEPS: Jepson Manual treatment for PROSOPIS pubescens". berkeley.edu. Retrieved 4 August 2015.

Further reading