Always look for the berrylike structures, needle leaves, and resinous, fragrant sap to be sure the plant you have is a Juniper. Nettle are edible. Boiling the plant for 15 minutes destroys the stinging element of the bristles. This plant is very nutritious. It grows in very wet areas.
Acorns are edible, but often contain large quantities of bitter substances.
White oak acorns usually have a better flavor than red oak acorns. Gather and shell the acorns. Soak the acorns in water for 2 to 7 days, changing the water twice daily, to remove the bitter substance. Boil the acorns or grind them into flour and use the flour for baking. Tannic acid gives the acorns their bitter taste.