Walnut fruit consist of an outer green husk and an internal nut. The nut has a shell and an inner edible fleshy portion. Workers usually wear gloves when harvesting walnuts, because the husks contain a strong dye that stains skin dark brown.
Te whakamahi i tēnei tūemi
Natural Sciences Image Library of New Zealand
Reference:
NO336Smn.jpg
Photograph by Peter E. Smith
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