Common names: blackjack oak, blackjack

Scientific names: Quercus marilandica

Seasons of significant use: spring, summer, fall, winter (for Quercus spp. complex)

Characteristics: Native, perennial tree to 60.0 feet but usually much smaller. Bark dark brown to black, rough, deeply fissured and broke into blocklike plates; leaves tardily deciduous, alternate, simple, usually 3-lobed at outer end with bristle tips; margins usually curled toward underside; plants monoecious; inflorescences are catkins; fruit a 1-seeded nut called an acorn, solitary or paired, cup enclosing 33-67% of nut, maturing second year in the fall. Flowers March-April.

Plant community type: Found primarily in uplands.

Comments: Prolific root sprouter.

More Plant Photos and Descriptions:
Appendix C: Plants by Common Name
Appendix C: Plants by Scientific Name
Appendix C: Plants Listed by Family