Plantae > Tracheophyta > Magnoliopsida > Fagales > Juglandaceae > Juglans > Juglans microcarpaJuglans microcarpa (little walnut)Synonyms: Juglans microcarpa var. microcarpa; Juglans rupestris (homotypic) 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 Juglans sect. Rhysocaryon), is a large shrub or small tree (10–30 ft tall) which grows wild along streams and ravines in Texas, New Mexico, Oklahoma, and Kansas. 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. |
| Air Quality Improvement [1] | Low | | Allergen Potential [1] | High | | Carbon Capture [1] | Medium | | Screening - Summer [2] | Dense | | Screening - Winter [2] | Moderate | | Shade Percentage [1] | 91 % | | Temperature Reduction [1] | Medium | | Wind Reduction [1] | Medium |  | | Bloom Period [2] | Mid 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] | 6 months | | Fruit/Seed Abundance [2] | Medium | | Fruit/Seed Begin [2] | Summer | | Fruit/Seed End [2] | Summer | | 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, Seed | | Root Depth [2] | 24 inches (61 cm) | | Seed Spread Rate [2] | Slow | | Seed Vigor [2] | Medium | | Seeds Per [2] | 92 / lb (203 / kg) | | Shape/Orientation [2] | Erect | | Specific Gravity [4] | 0.47 | | Structure [3] | Tree | | Usage [3] | Sometimes used as a rootstock;
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 - heavy, hard, not strong. It makes a beautiful veneer and has been very over-exploited in the wild for this purpose; It is also used in cabinet making, furniture etc; | | Vegetative Spread Rate [2] | None | | | Flower Color [2] | Green | | Foliage Color [2] | Green | | Fruit Color [2] | Black | | | Fall Conspicuous [2] | Yes | | Fruit Conspicuous [2] | Yes | | | Height [3] | 33 feet (10 m) | | Width [3] | 33 feet (10 m) | | | Hardiness Zone Minimum [1] | USDA Zone: 5 Low Temperature: -20 F° (-28.9 C°) → -10 F° (-23.3 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] | Infertile | | Water Use [1] | Moderate |
View Plants For A Future Record : Juglans microcarpa |
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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