Juglans major

Juglans major
At Morton Arboretum, Illinois
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fagales
Family: Juglandaceae
Genus: Juglans
Section: Juglans sect. Rhysocaryon
Species:
J. major
Binomial name
Juglans major
(Torr.) A. Heller
Natural range of Juglans major
Synonyms
  • Juglans elaeopyren Dode
  • Juglans microcarpa subsp. major (Torr.) A.E. Murray
  • Juglans microcarpa var. major (Torr.) L.D. Benson
  • Juglans rupestris var. major Torr

Juglans major (literally, the larger walnut), also known as Arizona walnut, is a walnut tree which grows to 50 ft tall (15 m) with a DBH of up to 0.61 metres (2 ft) at elevations of 300–2,130 m (1,000–7,000 ft) in Texas, Oklahoma, New Mexico, Arizona, and Utah. It also occurs in Mexico as far south as Guerrero. Common names include Arizona black walnut (as it belongs to the "black walnuts" section Juglans sect. Rhysocaryon), and the Spanish name nogal cimarrón (cimarron walnut).

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