- Juglans regia L.
- Walnut family
Parts Usually Used
Leaves, outer hulls and bark
Description of Plant(s) and Culture
The English walnut tree is widely cultivated for its wide-spreading
branches. It grows to about 80 feet high and has gray bark and oblong-ovate,
entire leaflets that are sticky when young but glabrous later. Blooming
in May, the male flowers appear in axillary catkins, the female in
terminal spikes. The fruit is the common walnut.
Astringent, tonic, nutritive, demulcent, laxative (bark), stomachic.
Juglone is believed to have an antifungal property; the hulls and
leaves are highly astringent and contain tannin as well as juglandin,
a bitter principle.
Juglone, isojuglone, essential oil, inositol, phytin, phytosterols,
oxidase, vitamins A, B, C, and E, and ellagic, laric, myristic, arachic,
linoleic, linolenic, isolinolenic, and oleic acids
Leaf tea is a tonic to the stomach
and promotes good appetite;
used for catarrhal enteritis. The decoction used externally as a wash
or bath additive for rheumatism,
swelling, gum problems,
scrofula, sweaty feet, acne, dandruff,
skin problems, and excessive milk flow after the child has been weaned.
A decoction of the green shell surrounding the walnut has been recommended
for failing virility. Use the infusion as a rinse for hair loss.
Formulas or Dosages
Decoction: use 4 tsp. leaves or chopped green shells with
1 cup water. Take 1 cup a day, a mouthful at a time.
Bath Additive: boil 1 lb. dried leaves in 1 1/2 qt. water
for 45 minutes, and add the liquid to the bath water. For a footbath,
reduce the amounts proportionately.
Vitamins A, B, C, and E.