What is "wig tree"

Wig \Wig\, n. [Abbreviation from periwig.]

1. A covering for the head, consisting of hair interwoven or united by a kind of network, either in imitation of the natural growth, or in abundant and flowing curls, worn to supply a deficiency of natural hair, or for ornament, or according to traditional usage, as a part of an official or professional dress, the latter especially in England by judges and barristers.

2. An old seal; -- so called by fishermen.

   Wig tree. (Bot.) See Smoke tree, under Smoke.

n. Old World shrub having large plumes of yellowish feathery flowers resembling puffs of smoke [syn: Venetian sumac, Cotinus coggygria]