Trees of Wisconsin

Key to the Trees of Wisconsin

57. Acorn cup less deeply cup shaped ("turbinate to hemispheric") and tending to be larger, though there is considerable overlap in measurements; scales of the acorn cup broad and glossy at the base and strongly narrowed above; there is often a ring of "pits" at the tip of the acorn; distribution limited to a very few locations in the southern three tiers of counties in Wisconsin.	Quercus coccinea
57. Acorn cup more deeply cup shaped ("cup-shaped to turbinate") and tending to be smaller; scales of the acorn cup not glossy at the base and not narrowed upward or only slightly so; there is usually no ring of "pits" near the tip of the acorn; widely (though not uniformly) distributed throughout Wisconsin.	Quercus ellipsoidalis