| Clue | Source | Date |
|---|---|---|
| Sugar maple for New York and sabal palmetto for South Carolina, e.g. (2 wds.) | ||
| See 18-Across | Newsday | 09 May 2024 |
| Buckeye and others | Jonesin | 02 Apr 2019 |
| American symbols that stand out? | ||
| Candlenut and buckeye | ||
| California redwood and others | ||
| Ohio's buckeye, California's redwood, etc. | ||
| Paloverde and pecan |