Plantae > Tracheophyta > Magnoliopsida > Fagales > Juglandaceae > Juglans > Juglans majorJuglans major (Arizona walnut; New Mexico walnut; Arizona black walnut)Synonyms: Juglans elaeopyren; Juglans elaepyren; Juglans major glabrata; Juglans major var. major; Juglans microcarpa major (homotypic); Juglans microcarpa var. major (homotypic); Juglans rupestris var. major (homotypic) 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. It also occurs in Mexico as far south as Guerrero. Common names include Arizona walnut, Arizona black walnut (as it belongs to the "black walnuts" section Juglans sect. Rhysocaryon), and the generic Spanish term for walnuts nogal. |
| Air Quality Improvement [1] | Low | | Allergen Potential [1] | High | | Carbon Capture [1] | Medium-Low | | Screening - Summer [2] | Moderate | | Screening - Winter [2] | Porous | | Shade Percentage [1] | 91 % | | Temperature Reduction [1] | Medium | | Wind Reduction [1] | Medium |  | | Bloom Period [2] | Late Spring | | Drought Tolerance [2] | Medium | | Edible [3] | May be edible. See the Plants For A Future link below for details. | | Fire Tolerance [2] | None | | Flower Type [3] | Monoecious | | Frost Free Days [2] | 3 months 15 days | | Fruit/Seed Abundance [2] | Medium | | Fruit/Seed Begin [2] | Fall | | Fruit/Seed End [2] | Winter | | Growth Form [2] | Single Stem | | Growth Period [2] | Spring, Summer | | Growth Rate [2] | Slow | | Hazards [2] | Slight Toxicity | | Leaf Type [3] | Deciduous | | Lifespan [2] | Perennial | | Pollinators [3] | Wind | | Propagation [2] | Bare Root, Container, Cutting, Seed | | Root Depth [2] | 3.346 feet (102 cm) | | Seed Spread Rate [2] | Slow | | Seed Vigor [2] | Medium | | Seeds Per [2] | 90 / lb (198 / kg) | | Shape/Orientation [2] | Erect | | Specific Gravity [4] | 0.47 | | Structure [3] | Tree | | Usage [3] | This species is sometimes used as a rootstock;
A golden brown dye can be obtained from the seed husks;
A light brown dye is obtained from the young twigs;
Plants produce chemicals which can inhibit the growth of other plants. These chemicals are dissolved out of the leaves when it rains and are washed down to the ground below, reducing the growth of plants under the tree; The roots of many members of this genus produce substances that are toxic to many plant species, especially apples (Malus species), members of the Ericaceae, Potentilla spp and the white pines (certain Pinus spp.);
Wood - this very attractive wood rivals that of J. nigra, the black walnut, in quality; However, the limited range and smaller size of the tree have restricted its use; | | Vegetative Spread Rate [2] | None | | | Flower Color [2] | Brown | | Foliage Color [2] | Yellow | | Fruit Color [2] | Brown | | | Fall Conspicuous [2] | Yes | | Fruit Conspicuous [2] | Yes | | | Height [3] | 49 feet (15 m) | | Width [1] | 43 feet (13 m) | | | Hardiness Zone Minimum [1] | USDA Zone: 8 Low Temperature: 10 F° (-12.2 C°) → 20 F° (-6.7 C°) | | Hardiness Zone Maximum [1] | USDA Zone: 9 Low Temperature: 20 F° (-6.7 C°) → 30 F° (-1.1 C°) | | Light Preference [2] | Full Sun | | Soil Acidity [2] | Neutral | | Soil Fertility [2] | Intermediate | | Water Use [1] | Moderate |
View Plants For A Future Record : Juglans major |
Attributes / relations provided by ♦ 1i-Tree Species v. 4.0, developed by the USDA Forest Service's Northern Research Station and SUNY-ESF using the Horticopia, Inc. plant database. ♦ 2USDA Plants Database, U. S. Department of Agriculture ♦ 3Plants For A Future licensed under a Creative Commons Attribution 4.0 License♦ 4Forest Inventory and Analysis DB version 5.1, May 4, 2013, U.S. Forest Service ♦ 5Ammospermophilus interpres, Troy L. Best, Cynthia L. Lewis, Katharine Caesar, and Amy S. Titus, MAMMALIAN SPECIES No. 365, pp. 1-6 (1990) ♦ 6HOSTS - a Database of the World's Lepidopteran Hostplants Gaden S. Robinson, Phillip R. Ackery, Ian J. Kitching, George W. Beccaloni AND Luis M. Hernández ♦ 7Sciurus arizonensis, Troy L. Best and Suzanne Riedel, MAMMALIAN SPECIES No. 496, pp. 1-5 (1995) |
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0
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