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.[1] 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.[1] 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.
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.
El retortón[1] o retortuño (Prosopis strombulifera), también conocido como mastuerzo, es una especie arbustiva del género Prosopis que habita en regiones áridas de América del Sur.[2]
Si bien su altura es de sólo unos 3 m, crece también extendiéndose a partir de una red de largas raíces. Muchos ejemplares pueden crecer juntos, originados y unidos desde un único pie.
Sus hojas tienen textura cerosa, y están compuestas de un par de folíolos que están divididos cada uno en varios pares de foliolulos secundarios cada uno de hasta 10 mm de largo. En el área basal de cada hoja presenta espinas blanquecinas de hasta 20 mm de largo. La inflorescencia es una cabezuela esférica que mide unos 15 mm de diámetro, conteniendo muchas flores amarillas en forma de tubo muy estrecho. Su fruto es muy característico: una vaina cilíndrica enrollada apretadamente, de color amarillo brillante, y de hasta 5 cm de largo. Contiene varias semillas verdes.
Este arbusto está perfectamente adaptado a la sequía (xeromorfo), a las sales, y a la arena, tolerando bien las heladas.
En la Argentina habita en las provincias de: Jujuy, Salta, Tucumán, Catamarca, La Rioja, Córdoba, San Luis, San Juan, Mendoza, Neuquén, Río Negro, La Pampa, y Buenos Aires.[3][4]
En Chile habita en las regiones de: Arica y Parinacota, Tarapacá, Atacama, Coquimbo, Valparaíso, Metropolitana, y O'Higgins.
Se lo introdujo como planta ornamental en California, donde se afianzó en el medio silvestre, creciendo como una maleza invasora.
Prosopis strombulifera fue descrita por (Lam.) Benth. y publicado en Journal of Botany, being a second series of the Botanical Miscellany 4(31): 352. 1841.[5]
Prosopis: nombre genérico otorgado en griego para la bardana, pero se desconoce por qué se aplica a esta planta.[6]
strombulifera: epíteto
Posee dos variedades:[8]
El retortón o retortuño (Prosopis strombulifera), también conocido como mastuerzo, es una especie arbustiva del género Prosopis que habita en regiones áridas de América del Sur.
Acacia strombulifera é uma espécie de leguminosa do gênero Acacia, pertencente à família Fabaceae.[1]
Acacia strombulifera é uma espécie de leguminosa do gênero Acacia, pertencente à família Fabaceae.
Prosopis strombulifera là một loài thực vật có hoa trong họ Đậu. Loài này được (Lam.) Benth. miêu tả khoa học đầu tiên.[1]
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Prosopis strombulifera là một loài thực vật có hoa trong họ Đậu. Loài này được (Lam.) Benth. miêu tả khoa học đầu tiên.
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