Quicken tree : The European rowan tree; -- called also quickbeam, and quickenbeam. See Rowan tree.

Example:


Taxonomy
Quicken Tree, horse, 1968, Handicap, free encyclopedia, trainer, 1969, 1963, racehorses, dam, Mother Wit, foaled, Tropicana Hotel, the Rowan, racing, Las Vegas, San Juan Capistrano Invitational Handicap, California breeder.

Defination from the web:
Quicken Tree was foaled in California at Louis Rowan's Summit Lake Farm. ... Nearing the end of Quicken Tree's frustrating three-year-old campaign things began to change and he won a division of the Escondido Handicap at ...