| Answer | Crossword Clue |
|---|---|
| BEECHES | Gray-barked trees |
| BEECH | Gray-barked tree |
| ASPENS | White-barked trees |
| BLACKASHBACKLASH | Adverse reaction to plantings of dark-barked trees? |
| usnea | any pale-green or gray, mosslike lichen of the genus Usnea, common on rocks and trees |
| usneas | any pale-green or gray, mosslike lichen of the genus Usnea, common on rocks and trees |
| ashes | any of a genus (Fraxinus) of trees of the olive family with pinnate leaves, thin furrowed bark, and gray branchlets |
