FloraFinder.org
Home   About Us   FAQ  
Searching   Image Use Plant Books
x
FloraFinder uses cookies only for correct operation. More info. Okay

Quercus macrocarpa Michx.

Bur oak, blue oak, mossy-overcup oak, scrub oak

KingdomPlantaePlants, but not fungi, lichens, or algae
SubkingdomTracheobiontaVascular plants—plants with a “circulatory system” for delivering water and nutrients
DivisionMagnoliophytaFlowering plants, also known as angiosperms
ClassMagnoliopsidaDicotyledons—plants with two initial seed leaves
SubclassRosidaeRoses, legumes, proteas, dogwoods, hydrangeas, mistletoes, euphorbias, grapes, many more
OrderFagalesBirch, she-oak, beech, walnut, bayberry, others
FamilyFagaceaeBeech familhy
GenusQuercusLatin for “oak”
Speciesmacrocarpa“With large fruits or seed pods”

About plant names...

Bur oaks are natives of North America.

Identification: This oak reaches 70-80′ (21-24 m) in height, sometimes up to 100′ (30 m). It is very drought-resistant. It prefers limestone soils. Leaves are usually about 6″ (13 cm) long, sometimes up to 1′ (38 cm), and very deeply divided. They are yellow-brown in the fall. This species has the largest acorns of any oak, 1-1½″ (2.5-3.8 cm) long, half covered by the cap, which has a hairy or mossy fringe. See the Quercus comparison table.

Online References:

The USDA Forest Service's Silvics of North America site

The University of Connecticut Plant Database

Wikipedia

The Ohio State University PLANTFacts database

Plants for a Future, a resource and information centre for edible and otherwise useful plants

The Lady Bird Johnson Wildflower Center

The Virginia Tech Department of Forest Resources and Environmental Conservation

The USDA Forest Service's Fire Effects Information Database

The University of Florida Institute of Food and Agricultural Sciences

EFloras

References:

Sibley, David Allen, The Sibley Guide to Trees, Alfred A. Knopf, 2009, p. 209

 

Quercus macrocarpa description by Thomas H. Kent, last updated 25 May 2020.

© FloraFinder.org. All rights reserved.


 

Quercus macrocarpa (bur oak, blue oak, mossy-overcup oak, scrub oak)

9/7/2010 · Tower Hill Botanic Garden, Boylston, Mass­a­chu­setts

Quercus macrocarpa (bur oak, blue oak, mossy-overcup oak, scrub oak)

5/22/2010 · Garden in the Woods, Framingham, Mass­a­chu­setts · ≈ 17 × 12″ (44 × 29 cm)

Quercus macrocarpa (bur oak, blue oak, mossy-overcup oak, scrub oak)

5/22/2010 · Garden in the Woods, Framingham, Mass­a­chu­setts

Range:

About this map...