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Rubus allegheniensis Porter
Rosaceae (Rose Family)
USDA Symbol: RUAL
USDA Native Status: L48 (N), CAN (N)
A multi-stemmed shrub, usually 3-6 ft. tall and between 6-12 ft. wide. Commonly forms broad colonies. Erect branches become arching. Bark is purplish-red and armed with prickles. Dark green summer foliage is palmately or pinnately compound, becoming orange, red and purple in fall. Loose, terminal clusters of five-petaled flowers are followed by thimble-shaped, raspberry-like, black berries.
The Highbush Blackberry is a member of the family Rosaceae, which includes about 2000 species of trees, shrubs, and herbs worldwide; approximately 77 native and 9 naturalized tree species and many species of shrubs and herbs in North America; including service-berries (Amelanchier), hawthorns (Crataegus), apples (Malus), plums and cherries (Prunus), and mountain-ashes (Sorbus).
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Leaf Retention: Deciduous
Fruit Type: Berry
Size Notes: Up to about 10 feet tall, often shorter.
Autumn Foliage: yes
Bloom InformationBloom Color: White
Bloom Time: Apr , May , Jun , Jul
DistributionUSA: AL , AR , CA , CT , DC , GA , IA , IL , IN , KS , KY , MA , MD , ME , MI , MN , MO , NC , NE , NH , NJ , NY , OH , OK , PA , RI , SC , TN , VA , VT , WI , WV
Canada: NB , NS , ON , PE , QC
Native Distribution: N.S. to Que. & MN, s. to NC, AL, MO & OK
Native Habitat: Dry, upland pastures; open woods; prairies; roadsides
Growing ConditionsWater Use: Medium
Light Requirement: Sun , Part Shade , Shade
Soil Moisture: Moist
Soil pH: Acidic (pH<6.8)
CaCO3 Tolerance: High
Soil Description: Variable.
BenefitUse Wildlife: Very high for songbirds, game birds, and large and small mammals.
Warning: Plant has thorns or prickles.
Conspicuous Flowers: yes
Value to Beneficial InsectsSpecial Value to Native Bees
Special Value to Bumble Bees
Special Value to Honey Bees
Provides Nesting Materials/Structure for Native Bees
This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.
National Wetland Indicator Status
Web ReferenceWebref 30 - Calflora (2018) Calflora
Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter
Additional resourcesUSDA: Find Rubus allegheniensis in USDA Plants
FNA: Find Rubus allegheniensis in the Flora of North America (if available)
Google: Search Google for Rubus allegheniensis
MetadataRecord Modified: 2022-10-21
Research By: TWC Staff