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Flaigg, Norman G.
Juglans microcarpa Berl.
Little walnut, Nogalito, Texas walnut, Texas black walnut, River walnut
USDA Symbol: jumi
USDA Native Status: L48 (N)
Little walnut or Texas walnut is a small, deciduous tree or shrub, usually only 20 ft. in height. Its smooth or lightly furrowed branches form a broad, rounded crown. Pinnate foliage is long, narrow and yellow-green. Walnuts are the smallest of the Juglans species.
Squirrels and other rodents consume these nuts, which are mostly shell. The common and scientific names describe the tiny marblelike fruit, the smallest of the walnuts.
Bloom InformationBloom Color: White , Green
Bloom Time: Mar , Apr
, TX Native Distribution:
W. OK, KS
to s.e. NM
& adjacent Mex. Native Habitat:
Dry, rocky ravines, hillsides & stream banks
Growing ConditionsWater Use:
Medium Light Requirement:
Part Shade Soil Moisture:
Dry CaCO3 Tolerance:
Low Cold Tolerant:
Rocky soils. Limestone-based, Sandy Loam, Medium Loam, Clay Loam, Clay, Rocky Conditions Comments:
Little walnut or Texas walnut is a small, deciduous tree
or shrub. Its smooth or lightly furrowed branches form a broad, rounded crown. Pinnate
foliage is long, narrow and yellow-green. Its walnuts are the smallest of the Juglans species.
Shade tree Use Wildlife:
The nuts provide food for wildlife. Fruit-birds, Fruit-mammals, Nesting site, Cover. Interesting Foliage:
Birds , Butterflies Larval Host:
Banded hairstreak butterfly
PropagationPropagation Material: Seeds
Description: Plant nuts in fall or spring. If nuts are sown in spring, they must be stratified.
Seed Collection: Collect nuts in fall or winter when husks begin to turn black and split open. Remove husks. It is not necessary to remove shell. Sow immediately or keep in moist sand over winter. Nuts lose viability if allowed to dry out.
Seed Treatment: Stratify for 60-120 days at 34-41 degrees.
Butterflies and Moths of North America (BAMONA)
is a larval host and/or nectar source for:
National Wetland Indicator Status
This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1
(Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here
for map of regions.
From the National Suppliers Directory
According to the inventory provided by Associate Suppliers, this plant is available at the following locations:
Hill Country Natives
- Leander, TX
Record Last Modified: 2009-04-24
Research By: TWC Staff