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