Q. palustris – Pin Oak – Swamp Oak – This moderately fast growing, broadly conical, deciduous tree with pendent lower branches from Eastern and Central USA grows 70-80′ feet tall and 40′ feet wide. It initially has smooth silver-gray bark later becoming darker and purplish-gray with pale vertical streaks as it ages. It produces elliptic, deeply lobed, glossy, mid green leaves, to 6″ long, are broadly tapered at the bases, they have large tufts of hairs in the leaf vein axils beneath, and turn scarlet to red-brown in autumn. Leaves persist on the tree well into winter. It bears nearly spherical acorns that are shallowly enclosed in a finely hairy cup. Tolerate dry sandy soils.
Grow in deep, fertile, well drained soil in sun or partial shade, evergreen species prefer full sun. They tolerate alkaline soils unless stated otherwise.