Quercus lyrata

Common Name(s):

Overcup oak

Categories:

Native Plants, Poisonous Plants, Trees

Comment:

Native oak tree in the Fagaceae family. It tolerates wet sites. 

Wildlife Value:  This tree is mildly resistant to damage by deer.

Insects, Diseases, and Other Plant Problems: Oaks, in general, are susceptible to a large number of diseases, including chestnut blight, shoestring root rot, anthracnose, oak leaf blister, cankers, leaf spots, and powdery mildew.  However, this tree is resistant to oak wilt. Potential insect pests include scale, oak skeletonizer, leaf miner, galls, oak lace bugs, borers, caterpillars and nut weevils.

Height:

35-45 ft.

Flower:

Pollen flowers in drooping, elongated clusters; 0.7 to 1 in. acorn; cup covers most of the acorn

Zones:

5-9

Habit:

Deciduous

Site:

Sun; range of soil types including damp sites

Texture:

Medium

Form:

Pyramidal oval when young; oval to rounded with age; uniform branching; lower branches are upswept

Family:

Fagaceae

Poison Part:

Acorns (seeds of nuts) and young leaves.

Poison Delivery Mode:

Ingestion

Symptoms:

Stomach pain, constipation and later bloody diarrhea, excessive thirst and urination

Edibility:

Acorns (nuts) are edible after tannins are leached or boiled out. Only collect nuts from areas you know.

Toxic Principle:

Gallotannins, quercitrin, and quercitin.

Severity:

CAUSES ONLY LOW TOXICITY IF EATEN.

Found in:

Forest or natural areas; landscape as ornamental and shade trees.

Width:

35-40 ft.

Growth Rate:

Moderate

Leaf:

6 to 8 in. alternate, simple leathery leaves; tannin brown fall color

Tags:

deciduous, wet, wet sites, deer resistant, nuts

NCCES plant id: 2165