Quercus michauxii swamp chestnut oak Fagaceae QUMI; R, kf, w (E. Danielsen 2016);

Quercus michauxii.Erik Danielsen.S.I. NYC.4:25:2016 (Accessed 4/2016).

Quercus michauxii.Erik Danielsen.S.I. NYC.4.25.2016 (Accessed 4/2016).

Quercus michauxii is a tree to 30 m tall. white oak group (Lepidobalanus). Bark light gray, coarsely flaky, shallowly furrowed like that of Q. alba.

Leaves alternate, leaf stalks to 3 cm long, hairy below. Blade egg-shaped but widest above middle (obovate), base tapered to stalk, sometimes slightly lobed, 7-11 cm wide, whitish hairy on the underside, margin with 10-15 pairs of more-or-less uniform teeth, tips rounded or pointed but without bristle tips.

Flowers monoecious, males in catkins, female flowers inconspicuous each surrounded by a scaly base (involucre) that develops into the acorn cup.

Fruit: stalk short to none, nuts egg-shaped with a scaly, cupped base (acorns) 2.5-3.5 cm long, cup 2-3  cm wide, covering 1/2 the nut, scales with tips unattached to base (free).

Wetland status: FACW. 

Frequency in NYC: Very infrequent. 

Origin: Native. 

Habitat: Staten Island is the northern0most area in which Q. michauxii is found. New Jersey is listed as the northernmost area of occurrence. Wet soil, flood-plains, swamp forests.