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