River birch
Betula nigra
Birch trees in Delaware are usually found along streams and ponds, and are easily identified by their curling bark. Very hardy, birches can thrive in a wide range of conditions; therefore, they are often planted in urban areas and wetlands. Birch seeds can be eaten by wildlife. While some birches have wood with close-grained properties that are valued for furniture and flooring, this is not true of river birch.
Birch leaves are usually oblong with pointed, sharp-toothed edges. Birch beer is a popular carbonated drink made from the bark.
| Location | Points | C.B.H. | Height | Crown |
| 971 Cloverfield Lane, Houston | 240 | 114 | 110 | 63 |
| Fawn and Newton Roads, Bridgeville | 225 | 120 | 84 | 84 |
| Paradise Alley, Harrington | 213 | 117 | 78 | 74 |