Juglans major

Juglans major
Juglans major
Morton Arboretum acc. 614-47*1
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Fagales
Family: Juglandaceae
Subfamily: Juglandoideae
Tribe: Juglandeae
Subtribe: Juglandinae
Genus: Juglans
Section: Rhysocaryon
Species: J. major
Binomial name
Juglans major
(Torr.) A. Heller
Synonyms

Juglans elaeopyren Dode
Juglans microcarpa Berl. var. major (Torr.) L.D. Benson
Juglans rupestris Engelm. ex Torr. var. major Torr

Juglans major (literally, the larger walnut) is a walnut tree which grows to 50 ft tall (15 m) with a DBH of up to 2 feet (0.61 m) at elevations of 1000–7000 ft in Texas, Oklahoma, New Mexico, Arizona, and Utah[1]. Common names include Arizona Walnut and Nogal.

Description

In moister areas, the tree features a single, stout trunk; there are usually several slender trunks in drier situations.[2] The 8–14 in long pinnately compound leaves bear 9–15 lanceolate leaflets, 3/8–11/4 in wide by 2–4 in long. The small nut has a thick shell with deep grooves enclosing an oily, edible seed.

Where the range of J. major overlaps that of J. microcarpa, the two interbreed, producing many intermediate forms[3][4].

References

  1. ^ http://plants.usda.gov/java/profile?symbol=JUMA
  2. ^ Kershner, Mathews, Nelson, and Spellenberg, National Wildlife Federation Field Guide to Trees of North America Sterling Publishing Co., Inc, New York. © 2008 by Chanticleer Press, Inc. p. 228.
  3. ^ Vines, Robert A. 1960. Trees, shrubs, and woody vines of the Southwest. Austin, TX: University of Texas Press. 1104 p
  4. ^ Powell, A. Michael. 1988. Trees & shrubs of Trans-Pecos Texas including Big Bend and Guadalupe Mountains National Parks. Big Bend National Park, TX: Big Bend Natural History Association. 536 p.

External links

External identifiers for Juglans major
EOL 594768
ITIS 19252
NCBI 91217
Also found in: [//species.wikimedia.org/wiki/Juglans_major Wikispecies]