OF THE CAROLINAS & GEORGIA

Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Rosids: Fabids: Rosales

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Rubus canadensis   FAMILY Rosaceae   Go to FSUS key



SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Rubus canadensis   FAMILY Rosaceae

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 9 (2014)

Rubus canadensis

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 097-05-010:

Rubus canadensis   FAMILY Rosaceae

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)

Rubus canadensis

 

COMMON NAME:
Smooth Blackberry, Thornless Blackberry


         To see larger pictures, click or hover over the thumbnails.

image of Rubus canadensis, Smooth Blackberry, Thornless Blackberry

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_ruca16_001_lvd

        

image of Rubus canadensis, Smooth Blackberry, Thornless Blackberry

Suzanne Foster / USDA-NRCS PLANTS Database / US Forest Service    pnd_ruca16_002_lhd

        

image of Rubus canadensis, Smooth Blackberry, Thornless Blackberry

USDA-NRCS PLANTS Database / US Forest Service    pnd_ruca16_003_lhp

        

image of Rubus canadensis, Smooth Blackberry, Thornless Blackberry

JK Marlow    jkm120505_959

May    Rabun County    GA

Chattahoochee National Forest

image of Rubus canadensis, Smooth Blackberry, Thornless Blackberry

JK Marlow    jkm120523_224

May    Graham County    NC

Joyce Kilmer Memorial Forest

Glabrous, weakly armed, and found in higher elevations, per Woody Plants of the Blue Ridge (Lance).

image of Rubus canadensis, Smooth Blackberry, Thornless Blackberry

JK Marlow    jkm120523_231

May    Graham County    NC

Joyce Kilmer Memorial Forest

Primocanes [1st-year, usually flowerless canes] have leaves with 5 leaflets, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Rubus canadensis, Smooth Blackberry, Thornless Blackberry

JK Marlow    jkm120523_238

May    Graham County    NC

Joyce Kilmer Memorial Forest

image of Rubus canadensis, Smooth Blackberry, Thornless Blackberry

JK Marlow    jkm200517_4920

May    Transylvania County    NC

DuPont State Forest

Floricanes [canes that flower and fruit) have leaves with 3 leaflets, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Rubus canadensis, Smooth Blackberry, Thornless Blackberry

JK Marlow    jkm200517_4925

May    Transylvania County    NC

DuPont State Forest

image of Rubus canadensis, Smooth Blackberry, Thornless Blackberry

JK Marlow    s120523

May    Graham County    NC

Joyce Kilmer Memorial Forest

Primocane leaflets w attenuate to caudate apices, glabrous (or nearly) beneath, per Weakley's Flora.

image of Rubus canadensis, Smooth Blackberry, Thornless Blackberry

JK Marlow    jkm140607_502

June    Jackson County    NC

Whiteside Mountain

Similar to R. argutus, whose petals are 2-2.5cm long, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Rubus canadensis, Smooth Blackberry, Thornless Blackberry

JK Marlow    jkm140607_505

June    Jackson County    NC

Whiteside Mountain

Similar to R. argutus, whose sepals are 4-6mm long, densely pubescent, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Rubus canadensis, Smooth Blackberry, Thornless Blackberry

JK Marlow    jkm140607_508

June    Jackson County    NC

Whiteside Mountain

image of Rubus canadensis, Smooth Blackberry, Thornless Blackberry

JK Marlow    jkm200625_6026

June    Transylvania County    NC

DuPont State Forest

image of Rubus canadensis, Smooth Blackberry, Thornless Blackberry

JK Marlow    jkm200625_6027

June    Transylvania County    NC

DuPont State Forest

image of Rubus canadensis, Smooth Blackberry, Thornless Blackberry

JK Marlow    jkm200625_6031

June    Transylvania County    NC

DuPont State Forest

image of Rubus canadensis, Smooth Blackberry, Thornless Blackberry

JK Marlow    jkm150814_813

August    Jackson County    NC

Whiteside Mountain

Aggregate often smaller than that of R. argutus, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Rubus canadensis, Smooth Blackberry, Thornless Blackberry

JK Marlow    jkm201113_8222

November    Greenville County    SC

Caesars Head State Park

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Rubus canadensis   FAMILY Rosaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Rubus canadensis   FAMILY Rosaceae

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 9
Rubus canadensis

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 097-05-010:
Rubus canadensis   FAMILY Rosaceae

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Rubus canadensis

 

Find by SCIENTIFIC NAME:

2603

Shrub
Perennial

Habitat: forests, woodlands, grassy balds, especially common at high elevations, per Weakley's Flora

Native to the Carolinas & Georgia

Common in Carolina Mountains, uncommon in GA Mountains

map
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.

Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)

IS THE PLANT "ARMED"?
Stems armed with (at most) a few weak prickles, or sometimes nearly lacking

LEAVES:
Compound: floricanes 3 leaflets/ primocanes 5 leaflets
Alternate

FLOWER:
Summer
White
Radially symmetrical
5 sepals
5 petals
Numerous stamens
Bisexual

FRUIT:
Summer
Black
Aggregate of drupelets

 

TO LEARN MORE about this plant, look it up in a good book!



 


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