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 pascuus   FAMILY Rosaceae   Go to FSUS key


(?) PLANTS NATIONAL DATABASE:
Rubus pascuus   FAMILY Rosaceae

SYNONYMOUS WITH Flora of North America
Rubus pascuus

SYNONYMOUS WITH The Biota of North America Program. BONAP (Kartesz, 2015)
Rubus pascuus

SYNONYMOUS WITH (MISAPPLIED) Synthesis of the North American Flora (Kartesz, 1999)
Rubus discolor

 

COMMON NAME:
Chesapeake Blackberry, Topsy Blackberry


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

image of Rubus pascuus, Chesapeake Blackberry, Topsy Blackberry

JK Marlow    jkm220607_8307

June    Greenville County    SC

Bald Rock Heritage Preserve

R. pascuus may represent a stabilized hybrid between a European and a native blackberry species, per Flora of North America.

image of Rubus pascuus, Chesapeake Blackberry, Topsy Blackberry

JK Marlow    jkm220607_8308

June    Greenville County    SC

Bald Rock Heritage Preserve

image of Rubus pascuus, Chesapeake Blackberry, Topsy Blackberry

JK Marlow    jkm220607_8310

June    Greenville County    SC

Bald Rock Heritage Preserve

Compact inflorescences that usually barely surpass the leaves, per Flora of North America.

image of Rubus pascuus, Chesapeake Blackberry, Topsy Blackberry

JK Marlow    jkm220607_8311

June    Greenville County    SC

Bald Rock Heritage Preserve

image of Rubus pascuus, Chesapeake Blackberry, Topsy Blackberry

JK Marlow    jkm220607_8312

June    Greenville County    SC

Bald Rock Heritage Preserve

A notable aspect of R. pascuus is how vigorously armed it is, per Flora of North America.

image of Rubus pascuus, Chesapeake Blackberry, Topsy Blackberry

JK Marlow    jkm220607_8313

June    Greenville County    SC

Bald Rock Heritage Preserve

image of Rubus pascuus, Chesapeake Blackberry, Topsy Blackberry

JK Marlow    jkm220607_8314

June    Greenville County    SC

Bald Rock Heritage Preserve

The entire portion of leaflets restricted to the base (vs. R. cuneifolius proximal third entire), per Flora of North America.

image of Rubus pascuus, Chesapeake Blackberry, Topsy Blackberry

JK Marlow    jkm220607_8316

June    Greenville County    SC

Bald Rock Heritage Preserve

Leaflets toothed and grayish-tomentose beneath, per Weakley's Flora (2022).

image of Rubus pascuus, Chesapeake Blackberry, Topsy Blackberry

JK Marlow    jkm220607_8317

June    Greenville County    SC

Bald Rock Heritage Preserve

R. pascuus "stems canescent above" [vs. R. bifrons "stems glabrescent"], per Weakley's Flora (2022).

image of Rubus pascuus, Chesapeake Blackberry, Topsy Blackberry

JK Marlow    jkm220607_8319

June    Greenville County    SC

Bald Rock Heritage Preserve

Inflorescence cymose-paniculate; floricane branches & pedicels armed w strong flattened prickles, per Weakley's Flora (2022).

image of Rubus pascuus, Chesapeake Blackberry, Topsy Blackberry

JK Marlow    jkm071018_002

October    Anderson County    SC

Clemson Forest

Canes of Eurasian blackberries are very coarse, scrambling, often 2-5m long, and heavily armed, per Weakley's Flora (2022).

image of Rubus pascuus, Chesapeake Blackberry, Topsy Blackberry

JK Marlow    s071018_ef

October    Anderson County    SC

Clemson Forest

Very poorly known in NC, as all collections in the state were by a single person, per Vascular Plants of North Carolina.

image of Rubus pascuus, Chesapeake Blackberry, Topsy Blackberry

JK Marlow    s071018_g

October    Anderson County    SC

Clemson Forest

Prickles recurved, per Weakley's Flora (2022).

 

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

(?) PLANTS NATIONAL DATABASE:
Rubus pascuus   FAMILY Rosaceae

SYNONYMOUS WITH Flora of North America
Rubus pascuus

SYNONYMOUS WITH The Biota of North America Program. BONAP (Kartesz, 2015)
Rubus pascuus

SYNONYMOUS WITH (MISAPPLIED) Synthesis of the North American Flora (Kartesz, 1999)
Rubus discolor

 

Find by SCIENTIFIC NAME:

2528

Shrub
Perennial

Non-native: Europe

Rare

Habitat: Disturbed areas, thickets, per Weakley's Flora

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.)


Invasive?

This plant may be causing problems in natural areas outside its native range, according to authorities such as:

 

IS THE PLANT "ARMED"?
Stems armed, coarse, scrambling, to 3m long; prickles strong, curved

LEAVES:
Deciduous to semi-evergreen
Compound
Alternate

FLOWER:
Summer
White to pale pink
Radially symmetrical
5 sepals
5 petals
Numerous stamens

Inflorescence cymose-paniculate

FRUIT:
Summer
Aggregate of drupelets

 

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



 


Find by SCIENTIFIC NAME: