
#1853 most planted
Juglans microcarpa
Little walnut · also Texas walnut, Texas black walnut, Little black walnut
BroadleafDeciduous
16
trees mapped
0.00%
of all named trees
2
cities
2.1 in
median trunk (5 cm, 15 measured)
6.4 yr
median age (94% have a planting date)
Report an issue with this species
This deciduous small tree or large shrub typically has a rounded crown and deeply-furrowed trunk. It produces small, edible nuts and prefers full sun. Its roots release toxic substances that can affect nearby plants.
Where it grows
Trees in each city's inventory, with the share of that city's named trees this species accounts for.
- 150.01%6.4 yr2.1 in
- 10.00%——
Traits
- Form
- Broadleaf
- Foliage
- Deciduous
- Mature height
- 30–50 ft
- Canopy spread
- 30–50 ft
- Sun
- Full sun
- Water needs
- Moderate
- Drought tolerance
- Moderate
- Roots
- Invasive
- Wildlife value
- High
- Fire risk
- Low
- Blooms
- Mar, Apr, May
Trunk diameters across every city: median 2.1 in, mean 11 in, 90th percentile 24 in. Measured at breast height, as published by each inventory.
Native range
Terrestrial ecoregions where this species is native. Trees in the dataset mostly stand well outside it.
Temperate Broadleaf & Mixed Forests
- East Central Texas forests
Temperate Conifer Forests
- South Central Rockies forests
Temperate Grasslands, Savannas & Shrublands
- Texas blackland prairies
Other Juglans in the catalogue
12 of the top 2,000 species are in this genus.