Trees of Wisconsin

Key to the Trees of Wisconsin

68. Buds with 2 visible external bud scales; pith white and uniform; common and widespread species of mostly upland habitats.	Cornus alternifolia
68. Buds with more than 2 external bud scales; pith diaphragmed (white with green cross-partitions); rare tree of mostly wet habitats, reaching the extreme northwestern edge of its range at a single reported site in southeastern Wisconsin.	Nyssa sylvatica