Definition

Noun: 1. A small to medium-sized deciduous oak tree (Quercus ellipsoidalis) native to east central North America, characterized by leaves with sharply pointed lobes. 2. A common scrubby deciduous tree (Quercus marilandica) of the central and southeastern United States, having dark bark, broad three-lobed (club-shaped) leaves, and a tendency to form dense thickets.

Usage Examples

• The jack oak is well-adapted to dry, sandy soils.
• We identified a jack oak by its distinctive dark, blocky bark.
• The forest understory was dominated by thickets of jack oak.

Advanced Usage

• The term "jack oak" can refer specifically to either (Northern Pin Oak) or (Blackjack Oak), depending on the regional context. Botanists typically use the scientific names to avoid confusion.

Variants and Related Words

• Blackjack Oak: A common name for .
• Northern Pin Oak: A common name for .

Synonyms

• Scrub oak (a general term for small, shrubby oaks, which may include jack oaks).
• Blackjack oak (for ).
• Northern pin oak (for ).

Noun

1. small to medium deciduous oak of east central North America; leaves have sharply pointed lobes
2. a common scrubby deciduous tree of central and southeastern United States having dark bark and broad three-lobed (club-shaped) leaves; tends to form dense thickets