Geum rossii (R. Br.) Ser. var. turbinatum (Rydb.) C.L. Hitchc.

vernacular Ross' avens — variety · Rosaceae

USDA: GEROT
GBIF: 5369876
Rank: variety

Ross' avens (Geum rossii var. turbinatum) — Platephotograph · Andy FyonCC BY-NC source · iNaturalist ↗

§2Habit & range

Growth habit: Forb/herb
Duration: Perennial
Group: Dicot
Family: Rosaceae Juss.
Genus: Geum

§2a

Native status, by region

L48 Lower 48 States Native

§2b

County-level range

· 2 counties across 1 state

Legend Native · 2 Introduced · 0 Both · 0 Hover a county for detail.

§3Cultivation specs · USDA

Recorded by the USDA Plant Materials Program.

§3a

Tolerances

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

§3b

Climate & soil

Cold tolerance: 26 °F minimum
Frost-free days: 80 min.
Precipitation: 10–19 in/yr
pH range: 4.5–5.6
Root depth: 3 in min.
Fertility need: Low
Soil texture: coarse, medium

§3c

Form & growth

Growth form: Rhizomatous
Growth rate: Rapid
Lifespan: Short
Mature height: 0.4 ft
Foliage texture: Fine
Foliage colour: Green
Porosity (summer): Porous
Porosity (winter): Porous
Flower colour: Yellow
Fruit colour: Black
Fire resistant: Yes
N fixation: None
Toxicity: None

§3d

Reproduction

Bloom period: Summer
Seed abundance: High
Seed begins: Summer
Seed ends: Fall
Spread rate: Rapid
Stratify: Yes
Seeds / lb: 350,000
Propagation: seed, bare root, container

§3e

Use & availability

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

§4Counties, by state

Recorded in 2 counties across 1 state.

Montana view state ↗ 2 N ▾

§5Sources & provenance

USDA PLANTS

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

plants.usda.gov/GEROT ↗

GBIF Backbone

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

gbif.org/species/5369876 ↗

Record version

Cached and built locally. Source version on this record:

usda-plants-mt-2026-05-25

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