''Juglans microcarpa'', known also as the little walnut, Texas walnut, Texas black walnut or little black walnut (as it belongs to the "black walnuts"

section Section, Sectioning or Sectioned may refer to: Arts, entertainment and media * Section (music), a complete, but not independent, musical idea * Section (typography), a subdivision, especially of a chapter, in books and documents ** Section sign ...

''Juglans'' sect. ''Rhysocaryon''), is a large shrub or small tree (10–30 ft tall) which grows wild along streams and ravines in

Texas Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2 ...

New Mexico ) , population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano) , seat = Santa Fe, New Mexico, Santa Fe , LargestCity = Albuquerque, New Mexico, Albuquerque , LargestMetro = Albuquerque metropolitan area, Tiguex , Offi ...

, Oklahoma, and

Kansas Kansas () is a state in the Midwestern United States. Its capital is Topeka, and its largest city is Wichita. Kansas is a landlocked state bordered by Nebraska to the north; Missouri to the east; Oklahoma to the south; and Colorado to ...

, and the northernmost states of Mexico. It produces nuts with a width of 1/2—3/4 in. The pinnately compound leaves bear 7—25 untoothed to finely-toothed leaflets, each 1/4—1/2 in wide. It is found at elevations ranging from 700 ft to 6700 ft. Two varieties are recognized: ''J. microcarpa'' var. ''microcarpa'' and ''J. microcarpa'' var. ''stewartii''. Where the range of ''J. microcarpa'' overlaps with '' J. major'', the two species interbreed, producing populations with intermediate characteristics. This phenomenon has also been found where ''J. microcarpa'' trees grows near '' J. nigra trees. ''Juglans'' (literally "Jupiter's acorn") is the

Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power ...

name of the walnut. ''Microcarpa'' means "having small fruit". Though very small, the seeds contained within the nuts are edible.

References and external links

{{Taxonbar, from=Q291675 Edible nuts and seeds microcarpa Trees of the North-Central United States Trees of Mexico