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Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Quercus macrocarpa var. macrocarpa

Quercus macrocarpa Michx. var. macrocarpa

Bur Oak, Burr Oak, Mossy-cup Oak

Fagaceae (Beech family)

Synonym(s): Quercus macrocarpa var. oliviformis

USDA Symbol: QUMAM

USDA Native Status: L48 (N), CAN (N)

 

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Plant Characteristics

Duration: Perennial
Habit: Shrub , Tree
Leaf Retention: Deciduous
Fruit Type: Nut
Size Notes: Up to about 100 feet tall. Occasionally up to about 150 feet tall with 5 foot diameter trunk.
Leaf: Leaves 6-12 inches long by 3-6 inches wide
Fruit: Acorns 1-3, annual, ovoid-ellipsoid or oblong, up to about 2 inches. Cup hemispheric or turbinate, 2 inches deep by almost 2-1/2 inches wide, enclosing 1/2-7/8 nut or more. Scales near margins of cup often with soft awns forming fringe around nut.

Bloom Information

Bloom Color: Red , Yellow , Green , Brown
Bloom Time: Mar , Apr , May

Distribution

USA: AL , AR , CT , DC , DE , IA , IL , IN , KS , KY , LA , MA , MD , ME , MI , MN , MO , MS , MT , ND , NE , NH , NJ , NM , NY , OH , OK , PA , RI , SD , TN , TX , VA , VT , WI , WV , WY
Canada: AB , MB , NB , ON , QC , SK
Native Habitat: Bottomlands, riparian slopes, poorly drained areas, prairies, usually on limestone or calcareous clays. In northwest part of range also found on dry slopes and ridges.

Web Reference

Webref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Quercus macrocarpa var. macrocarpa in USDA Plants
FNA: Find Quercus macrocarpa var. macrocarpa in the Flora of North America (if available)
Google: Search Google for Quercus macrocarpa var. macrocarpa

Metadata

Record Modified: 2020-11-02
Research By: CBR

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