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