Rubus laciniatus Willd.

vernacular cutleaf blackberry — species · Rosaceae

USDA: RULA
GBIF: 2992543
Rank: species

cutleaf blackberry (Rubus laciniatus) — Platephotograph · Harry HillCC BY-NC source · iNaturalist ↗

§2Habit & range

Growth habit: Subshrub, Vine
Duration: Perennial
Group: Dicot
Family: Rosaceae Juss.
Genus: Rubus

§2a

Native status, by region

CAN Canada Introduced
L48 Lower 48 States Introduced

§2b

County-level range

· 4 counties across 1 state

Legend Native · 0 Introduced · 4 Both · 0 Hover a county for detail.

§3Cultivation specs · USDA

Recorded by the USDA Plant Materials Program.

§3a

Tolerances

Drought: Low
Shade: Low
Moisture use: Medium
Fire: High
Salinity: None
Anaerobic: Low
CaCO₃: High
Hedging: None

§3b

Climate & soil

Cold tolerance: -33 °F minimum
Frost-free days: 150 min.
Precipitation: 32–45 in/yr
pH range: 5.2–7.7
Root depth: 12 in min.
Fertility need: Medium
Soil texture: medium, fine

§3c

Form & growth

Growth form: Thicket Forming
Growth rate: Rapid
Lifespan: Short
Mature height: 12 ft
Height @ 20 y: 12 ft
Foliage texture: Coarse
Foliage colour: Green
Porosity (summer): Porous
Porosity (winter): Porous
Flower colour: White
Fruit colour: Black
Fire resistant: No
N fixation: None
Toxicity: None

§3d

Reproduction

Bloom period: Early Summer
Seed abundance: High
Seed begins: Summer
Seed ends: Fall
Stratify: Yes
Seeds / lb: 137,000
Propagation: seed, bare root, container, sprigs

§3e

Use & availability

Commercial availability: No Known Source
Nursery stock: No
Browse palatability: High
Graze palatability: Low
Palatable, human: Yes
Protein potential: Low
Lumber: No
Christmas tree: No

§4Counties, by state

Recorded in 4 counties across 1 state.

Montana view state ↗ 4 I ▾

§5Sources & provenance

USDA PLANTS

Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.

plants.usda.gov/RULA ↗

GBIF Backbone

Canonical taxonomic identity, synonym resolution, cross-refs. CC0.

gbif.org/species/2992543 ↗

Record version

Cached and built locally. Source version on this record:

usda-plants-mt-2026-05-25

fetched 2026-05-25T18:27:19Z