Lithocarpus

Description

Lithocarpus belongs to the oak family and is a type of evergreen tree or shrub. It is known for its edible acorns and is often referred to as the “oak of the Orient.” There are over 300 species of Lithocarpus found in Asia, with some also found in North America.

Taxonomic Information

Appearance

Lithocarpus trees vary in height from small shrubs to large trees reaching up to 70 feet tall. The leaves are simple, leathery, and glossy, with a dark green color on top and a lighter green underneath. The bark is smooth and gray when young, turning dark and deeply fissured with age. The acorns are large and edible, with a cup-shaped cap that covers the nut.

Care Guide

Lithocarpus prefers well-drained soil and moderate moisture. It can tolerate full sun to partial shade and is hardy in USDA zones 7 to 10. Fertilize once or twice a year with a balanced fertilizer, and water regularly during dry spells. Prune in late winter or early spring to control size and shape.

Common Pests & Diseases

Lithocarpus is generally resistant to pests and diseases, but can be susceptible to oak root fungus in poorly drained soil. Insects such as scale, mites, and caterpillars may also infest the tree.

Habitat

Lithocarpus is native to Asia and North America, where it can be found in a variety of habitats, including forests, woodlands, and mountain slopes.

Question and Answer

Q: Can Lithocarpus be grown in containers?

A: Yes, small varieties of Lithocarpus can be grown in containers, but they will need to be repotted as they grow.

Q: How long does it take for Lithocarpus to produce acorns?

A: Lithocarpus trees can take up to 20 years to produce acorns, depending on the species and growing conditions.

Q: Is Lithocarpus a good shade tree?

A: Yes, Lithocarpus can provide excellent shade with its large canopy and dense foliage.

Q: How can I tell if my Lithocarpus tree is healthy?

A: Look for signs of new growth and healthy foliage. Yellowing leaves or stunted growth may be a sign of nutrient deficiencies or pest infestations.

Related Plants

• Quercus (oak)
• Castanopsis (chinquapin)
• Cyclobalanopsis (ring-cupped oak)
• Chrysolepis (giant chinkapin)

References

• “Lithocarpus.” Missouri Botanical Garden, www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=c273.
• “Lithocarpus.” Plant Database, Dave’s Garden, davesgarden.com/guides/pf/go/57384/.
• “Lithocarpus.” Efloras, efloras.org/browse.aspx?flora_id=2&name_str=Lithocarpus.