4 adjectives to describe boscages

Some few seasons ago a fisherman saw, far on the horizon, renowned Hy Brazel, where he who touches shall find no more labour or care, nor cynic laughter, but shall go walking about under shadiest boscage, and enjoy the conversation of Cuchullin and his heroes.

Our suns were all too fierce for him; Our rude winds pierced him through and through; But Heaven has valleys cool and dim, And boscage sweet with starry dew.

" In Aubrey's posthumous work on Surrey, published in 1718, the northern part of the hill is described as thickly covered with yew-trees, and the southern part with "thick boscages of box-trees," which "yielded a convenient privacy for lovers, who frequently meet here, so that it is an English Daphne."

In half an hour I was moving up an opening in the land with mountains on either hand, streaky crags at their summit, umbrageous boscage below; and the whole softened, as it were, by veils woven of the rainbow.

4 adjectives to describe  boscages