欧洲蕨
Bracken \Brack"en\, n. [OE. braken, AS. bracce. See {2d Brake}, n.] A brake or fern. --Sir W. Scott.
bracken n 1: fern of southeastern Asia; not hardy in cold temperate regions [syn: {Pteridium esculentum}] 2: large coarse fern often several feet high; essentially weed ferns; cosmopolitan [syn: {pasture brake}, {brake}, {Pteridium aquilinum}]