Quercus marilandica Munchh. - Black-jack Oak


 

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Quercus marilandica - (image 1 of 3)

 

Taxonomy

Family: Fagaceae

Habitat

Typically on dry sandy soils.

Associates

 

 Distribution

Southern NY west to southern IA, south to FL and TX.

Morphology

Small to medium deciduous tree. Bark dark gray, deeply checked. Twigs thinly pubescent. Leaves alternate, simple, obovate to triangular-obovate, usually with 3-5 broad and shallow lobes at the summit, rarely with additional lobes proximally, rounded to subcordate at the base, the lower surface with conspicuous stellate hairs easily discernable at 10x; winter buds pubescent. Acorns 1.5-2 cm; cup turbinate with relative few large scales, covering about half of the nut.

Notes

Flowers mid April to early June

Wetland indicator: NA

Hybrids between this species and Q. illicifolia are called Q. x britonii W.T. Davis. The pictures shown here were taken in the NJ pine barrens and would represent var. marilandica.

References

Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. Second Ed.

The New York Botanical Garden. Bronx, NY
 


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 Michael Hough © 2014