Bur Oak

Quercus macrocarpa

Form: large tree forming broad, rounded crown

Text Box: Form: large tree forming broad, rounded crown

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Twig: often with corky ridges; stout, yellowish-brown; multiple small round terminal buds which may be slightly pubescent; small stipules are typically present

Text Box: Twig: often with corky ridges; stout, yellowish-brown; multiple small round terminal buds which may be slightly pubescent; small stipules are typically present

Leaf: simple, alternate, 6-12 inches long with rounded lobes; two middle sinuses nearly reaching the midrib; pale pubescence beneath.

Text Box: Leaf: simple, alternate, 6-12 inches long with rounded lobes; two middle sinuses nearly reaching the midrib; pale pubescence beneath.

Fruit: acorn 1 ½ inches long; half enclosed by highly warty, fringed cap; matures in one year in August to November

Text Box: Fruit: acorn 1 ½ inches long; half enclosed by highly warty, fringed cap; matures in one year in August to November

Bark: thick; ash grey to brown in color; deeply furrowed scales arranged vertically

Flower: appear in May or June shortly after the leaves; male is 2 to 4 inches long, green; female flower red occurring as spikes

Habitat: native to Michigan; pollution tolerant

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