Dryas drummondii Richardson ex Hook.

vernacular Drummond's mountain-avens — species · Rosaceae

USDA: DRDR
GBIF: 5364173
Rank: species

Drummond's mountain-avens (Dryas drummondii) — Platephotograph · Jason HollingerCC BY-SA source · iNaturalist ↗

§2Habit & range

Growth habit: Forb/herb, Shrub, Subshrub
Duration: Perennial
Group: Dicot
Family: Rosaceae Juss.
Genus: Dryas

§2a

Native status, by region

AK Alaska Native
CAN Canada Native
L48 Lower 48 States Native

§2b

County-level range

· 17 counties across 2 states/territories

Legend Native · 17 Introduced · 0 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: Medium
Salinity: None
Anaerobic: None
CaCO₃: Medium
Hedging: None

§3b

Climate & soil

Cold tolerance: -43 °F minimum
Frost-free days: 90 min.
Precipitation: 14–40 in/yr
pH range: 6–7.5
Root depth: 12 in min.
Fertility need: Medium
Soil texture: coarse, medium

§3c

Form & growth

Growth form: Single Crown
Growth rate: Slow
Lifespan: Short
Mature height: 1 ft
Height @ 20 y: 1 ft
Foliage texture: Medium
Foliage colour: Green
Porosity (summer): Porous
Porosity (winter): Porous
Flower colour: Yellow
Fruit colour: Brown
Fire resistant: No
N fixation: Low
Toxicity: None

§3d

Reproduction

Bloom period: Late Spring
Seed abundance: Medium
Seed begins: Summer
Seed ends: Summer
Spread rate: Slow
Stratify: No
Seeds / lb: 908,000
Propagation: seed, bare root, container

§3e

Use & availability

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

§4Counties, by state

Recorded in 17 counties across 2 states/territories.

Alaska view state ↗ 12 N ▾

Montana view state ↗ 5 N ▾

§5Sources & provenance

USDA PLANTS

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

plants.usda.gov/DRDR ↗

GBIF Backbone

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

gbif.org/species/5364173 ↗

Record version

Cached and built locally. Source version on this record:

usda-plants-mt-2026-05-26

fetched 2026-05-26T07:25:30Z