Blackjack oak
Quercus marilandica
BLACKJACK OAK
Fagaceae
E. North America
Location: map coordinates U-14 (southwest of Loockerman Hall), N 39°11'6'' W 75°32'41''
Planting history: planted November 2010. Source: Go Native Tree Farm, PA. (Dr. S. Yost, USDA NIFA Capacity Building Grant funds).
Description:
Native species, State Rank S3 (uncommon, but not of conservation concern, yet) coastal plain of Kent and Sussex Counties, Delaware
BLACKJACK OAK
Fagaceae
E. North America
Location: map coordinates U-14 (southwest of Loockerman Hall), N 39°11'6'' W 75°32'41''
Planting history: planted November 2010. Source: Go Native Tree Farm, PA. (Dr. S. Yost, USDA NIFA Capacity Building Grant funds).
Description:
- small- to medium-sized deciduous tree
- etymology: Quercus = the Latin name; marilandica = of Maryland
- leaves simple, alternate, lobed; with distinctive “blackjack” club shape (abruptly wider at the top); either almost entire, or more lobed; leathery or scaly beneath
- monoecious (separate male and female flowers on same tree); flowers tiny; male flowers in drooping catkins, female flowers inconspicuous
- fruit is an acorn (develops from ovary of female flower)
- in the “red/black oak group”: leaf lobes with bristle-tips; acorn matures in 2 years, relatively bitter and inedible unless processed
- end buds clustered (typical of oaks)
- native habitat open woods, clearings; well-drained, even poor, soils; early successional tree following fires
Native species, State Rank S3 (uncommon, but not of conservation concern, yet) coastal plain of Kent and Sussex Counties, Delaware
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