Morus rubra
Overview
The Red Mulberry is a medium-sized native tree known for its sweet fruit, broad leaves, and importance to wildlife. Native to eastern North America, it commonly grows in rich forests, floodplains, stream valleys, and woodland edges throughout West Virginia and the Appalachian region.
Although often overshadowed by the more widespread White Mulberry (Morus alba), a non-native species introduced from Asia, Red Mulberry is the only mulberry native to West Virginia. Its fruit provides food for numerous wildlife species, while its shade and habitat value make it an important component of native forest ecosystems.
Identification
Leaves
- Alternate leaf arrangement
- Highly variable leaf shapes
- Often unlobed, but some leaves may have two or more lobes
- Coarsely toothed margins
- Rough upper surface and softly hairy underside
- Yellow fall color
Bark
- Gray-brown bark
- Develops narrow ridges and furrows with age
- Often forms scaly plates on mature trees
Flowers
- Small green flowers produced in spring
- Male and female flowers typically occur on separate trees
- Wind-pollinated
Fruit
- Blackberry-like clusters of small drupelets
- Ripen from red to deep purple-black
- Mature in late spring to early summer
- Sweet and edible
Size
- Typically grows 30 to 50 feet tall
- May reach 60 feet under favorable conditions
- Develops a broad, spreading crown
Native Range
Red Mulberry is native to eastern North America and occurs throughout West Virginia. It is commonly found in rich bottomlands, stream corridors, moist forests, and protected woodland sites.
The species prefers fertile, well-drained soils and is often associated with other hardwoods such as American Sycamore, Tuliptree, Sugar Maple, and various oak species.
Ecology and Wildlife Value
Red Mulberry is one of the most valuable fruit-producing native trees for wildlife.
Its fruits are consumed by:
- American robins
- Cedar waxwings
- Thrushes
- Orioles
- Wild turkeys
- Raccoons
- Opossums
- Foxes
- Small mammals
The tree also supports numerous native insects and provides nesting habitat and shelter for birds and other wildlife.
Because the fruit ripens in late spring and early summer, it provides an important food source when relatively few native tree fruits are available.
Human Uses and Cultural Significance
Red Mulberry fruit has long been valued by Indigenous peoples and settlers as a seasonal food source.
The fruit can be eaten:
- Fresh
- Dried
- In jams and jellies
- In pies and baked goods
- In beverages and preserves
The wood is relatively durable and has historically been used for:
- Fence posts
- Furniture
- Tool handles
- Specialty woodworking projects
Today, Red Mulberry is increasingly recognized as an important native species requiring conservation attention because of competition and hybridization with the introduced White Mulberry.
Conservation Note
Across much of its range, Red Mulberry faces pressure from the introduced White Mulberry (Morus alba). The two species readily hybridize, making it difficult to maintain genetically pure Red Mulberry populations in some areas.
Conservation efforts increasingly focus on identifying and protecting native Red Mulberry populations to preserve the species’ ecological and genetic integrity.
Red Mulberry at Marshall University
Red Mulberry contributes biodiversity and wildlife value to the Marshall University Arboretum. Its edible fruit attracts birds and other wildlife, while its broad canopy adds shade and structure to the campus landscape.
As a West Virginia native species, Red Mulberry helps showcase the diversity of native fruit-bearing trees and illustrates the ongoing importance of conserving native plants within both natural and urban environments.
Quick Facts
Common Name: Red Mulberry
Scientific Name: Morus rubra
Family: Moraceae
Native Region: West Virginia Native
Mature Height: 30-50 feet (occasionally 60+ feet)
Mature Spread: 30-50 feet
Growth Rate: Moderate to Fast
Sun Requirements: Full Sun to Partial Shade
Soil Preferences: Rich, moist, well-drained soils
USDA Hardiness Zones: 4-8
Bloom Period: April to May
Fruit/Seed: Edible purple-black fruits that ripen in late spring and early summer
Wildlife Value: Excellent food source for birds and mammals; supports native insects and pollinators
Notable Characteristics: Edible fruit, variable leaf shapes, and status as West Virginia’s native mulberry species