The Collaborative International Dictionary
Quicken tree \Quick"en tree`\ [Probably from quick, and first applied to the aspen or some tree with quivering leaves; cf. G. quickenbaum, quizenbaum, quitschenbaum. Cf. Quitch grass.] (Bot.) The European rowan tree; -- called also quickbeam, and quickenbeam. See Rowan tree.
Wikipedia
Quicken Tree (April 18, 1963 – October 22, 1970) was an American Thoroughbred racehorse known for his come-from-behind style of running and his ability to win at classic and marathon distances. His California breeder, Louis Rowan, a co-founder of the Oak Tree Racing Association, named the horse after one of the folk names given to the Rowan plant.
Usage examples of "quicken tree".
It is made from the berries of the Quicken tree and inspires one with cheerfulness.
Master Sean took his sorcerer's staff, a five-foot, heavy rod made of the wood of the quicken tree or mountain ash, and touched the inner lid.