'Maiden tree' definitions:

Definition of 'Maiden tree'

From: GCIDE

Maiden \Maid"en\, v. t. To act coyly like a maiden; -- with it as an indefinite object. [1913 Webster]
For had I maiden'd it, as many use. Loath for to grant, but loather to refuse. --Bp. Hall. [1913 Webster]
Maiden grass, the smaller quaking grass.
Maiden tree. See Ginkgo. [1913 Webster]