1. Fraxinus americana   pine   maple   walnut   ash   Hint Half-n-half Clue   2. Juglans nigra   birch   hickory   walnut   spruce   Half-n-half Clue   3. Betula nigra   birch   walnut   sycamore   pine   Half-n-half Clue   4. Platanus occidentalis   sycamore   ash   walnut   birch   Half-n-half Clue   5. Quercus velutina   hickory   maple   cedar   oak   Half-n-half Clue   6. Juniperus virginiana   birch   maple   hibiscus   cedar   Half-n-half Clue   7. Hibiscus lasiocarpus   sycamore   ash   cedar   hibiscus   Half-n-half Clue