Names: from Jovis and Glans, the nuts of
Jupiter; Regia gives a royal tinge.
English: Walnut.
Dutch: Walnoot.
Content: phosphorus, sodium, potassium, calcium, iodine; juglon, a glycoside that inhibits germination.
Use: brown dye.
Source:
Wadstories 2, Ed Brink.
DD: Carbon,
Gold series.