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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: PerennialHabit: 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 , BrownBloom 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 , WYCanada: 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 PlantsFNA: Find Quercus macrocarpa var. macrocarpa in the Flora of North America (if available)
Google: Search Google for Quercus macrocarpa var. macrocarpa
Metadata
Record Modified: 2020-11-02Research By: CBR