Habitat:
Base of S-facing Wisconsin River vally bluff, woods which had invaded former pasture, with Prunus serotina, Juniperus virginiana, Ulmus pumila, Morus alba, Juglans cinerea.
Occurrence Remarks:
Voucher for wood specimens at Kw, Lw, MADw, MEXUw, RSAw, USZw, Penn State. Wood specimen from 5 m. above the ground from straight main trunk.; Large tree 50 cm. in diameter, bark furrowed; exposed roots bright yellow. Sapwood 3-4 rings thick, pale; heartwood yellow-tan, the cut surface turning a rich reddish brown, but this only superficial and the dried wood still light yellow. Staminate; catkins abundant, on all twigs.