Witch Brooms
WITCH BROOMS, or " Birds' Nests," in botany, peculiar broom-like growths often seen on the branches of many trees. They are a dense development of branching twigs formed at one place on a branch as the result of the irritation set up by the presence of a mite or a fungus.
Note - this article incorporates content from Encyclopaedia Britannica, Eleventh Edition, (1910-1911)
