Introductory
SPECIES: Juglans microcarpa | Little Walnut 



ABBREVIATION : 
JUGMIC

SYNONYMS : 
   Juglans rupestris
   Juglans nana


SCS PLANT CODE : 
   JUMI
   JUMIS


COMMON NAMES : 
   little walnut
   Texas walnut
   Texas black walnut
   dwarf walnut
   river walnut
   Mexican walnut
   walnut
   nogal
   nogalillo
   nogalito
   namboca


TAXONOMY : 
The currently accepted scientific name of little walnut is Juglans
microcarpa Berl. [17].  Two varieties are delineated on the basis of
morphological differences such as leaf and fruit size [26].  The
following varieties are commonly recognized [17]:

                  Juglans microcarpa var. microcarpa
                  Juglans microcarpa var. stewartii

Little walnut hybridizes with the closely related Arizona black walnut
(Juglans major) [36], and populations which exhibit various intermediate
characteristics have been reported [26].  At the eastern edge of its
range, little walnut intergrades with black walnut (J. nigra) [3,31].


LIFE FORM : 
Tree, Shrub

FEDERAL LEGAL STATUS : 
No special status

OTHER STATUS : 
NO-ENTRY


COMPILED BY AND DATE : 
D. Tirmenstein  October, 1990.


LAST REVISED BY AND DATE : 
NO-ENTRY


AUTHORSHIP AND CITATION : 
Tirmenstein, D. A. 1990. Juglans microcarpa. In: Remainder of Citation

Related categories for Species: Juglans microcarpa | Little Walnut