| ASHKEY | The "helicopter seed" of trees in the Fraxinus genus |
| WALNUT | Edible seed of trees of the genus Juglans |
| PINECONE | Seed of tree nice and open (4-4) |
| ACORN | Seed of tree (5) |
| ASH | Tree of the Fraxinus genus of flowering plants in the olive and lilac family Oleaceae (3) |
| ASHTREE | Common name for a member of the fraxinus genus (3,4) |
| ASHKEYS | Samaras or "helicopters" of trees in the genus Fraxinus (3-4) |
| OAKLEAF | Any one of the photosynthesis organs of trees in the genus Quercus such as encina that were used for the crowns of ancient kings (3,4) |
| HAZELNUT | Edible fruit of trees in the genus Corylus, part of the birch family |
| FIGS | Pear-shaped "fruits" or syconia of trees in the mulberry family, with leaves symbolising modesty in art; dialect word for segments of oranges; or, lady finger bananas (4) |
| MOSS | Plant that grows on the north side of trees in the northern hemisphere |
| OAKWOOD | Forest of trees in the genus Quercus (7) |
| FLINDERSIA | Small genus of trees in the family Rutaceae, named after a famous Australian explorer (10) |
| ASHCANKER | Disease of trees in the family Oleaceae (3,6) |
| MOTTE | Grove of trees, in the Southwest |
| LAURELWILT | Fungal disease of trees in the family Lauraceae (6,4) |
| PEAR | Kind of tree in The Twelve Days of Christmas |
| SILVA | From the Latin meaning "wood", the assemblage of trees in a given area; or, the truncated title of John Evelyn's forestry discourse presented to the Royal Society in 1662 (5) |
| SYLVA | From the Latin meaning "wood", the assemblage of trees in a given area; or, the truncated title of John Evelyn's forestry discourse presented to the Royal Society in 1662 (5) |
| PALM | Kind of tree in the desert |
