Ehretia anacua

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Ehretia anacua is medium-sized tree found in eastern Mexico and southern Texas in the United States. It is a member of the borage family, Boraginaceae.[1] One of its common names, anacua, is derived from the Mexican Spanish word anacahuite, as is that of the related Cordia boissieri, the anacahuita.[2] That word in turn is derived from the Nahuatl words āmatl, meaning "paper," and cuahuitl, meaning "tree,"[3] possibly referring to the bark. It is also known as knockaway, a corruption of anacua, and sandpaper tree.[2] Alternate spellings are anaqua and anachua.[4]

Description

Anacua reaches a height of Script error: No such module "convert".[2] and a diameter of Script error: No such module "convert".,[5] often producing suckers or multiple trunks.[2] The bark is reddish-brown to gray with narrow furrows and peeling scales. The dark green leaves are Script error: No such module "convert". and Script error: No such module "convert". wide and elliptical or ovate. Their upper surfaces are remarkably rough, feeling like low-grade sandpaper.[5] Anacua is a partial evergreen, replacing some of the leaves in early spring. Abundant white flowers[2] form in panicles or cymes[6] Script error: No such module "convert". in length at the ends of twigs,[5] making trees appear to be covered in snow when in bloom from spring to summer.[2] Flowers are Script error: No such module "convert". wide and have 5 corolla lobes. The fruits are spherical[5] drupes[7] 8 mm in diameter and yellowish-orange.[5] The drupes contain two stones, each with two seeds.[5] In addition to being edible by humans, the drupes are eaten by mammals and birds[2] such as the clay-colored thrush.[8] The lifespan of an Anacua is at least 50 years.[9]

Habitat

Anacua is found on dry hillsides as a shrub, but reaches tree size in the moist soils of riparian zones and floodplains. It can be found at elevations from sea level to Script error: No such module "convert"..[5]

Ecology

The leaves of E. anacua are the sole food source of the Texas tortoise beetle (Coptocycla texana).[10]

References

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External links

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