Danthonia unispicata (Thurb.) Munro ex Macoun

vernacular onespike danthonia — species · Poaceae

USDA: DAUN
GBIF: 2703271
Rank: species

onespike danthonia (Danthonia unispicata) — Platephotograph · k873245345 source · iNaturalist ↗

§2Habit & range

Growth habit: Graminoid
Duration: Perennial
Group: Monocot
Family: Poaceae Barnhart
Genus: Danthonia

§2a

Native status, by region

CAN Canada Native
L48 Lower 48 States Native

§2b

County-level range

· 4 counties across 1 state

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

§3Cultivation specs · USDA

Recorded by the USDA Plant Materials Program.

§3a

Tolerances

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

§3b

Climate & soil

Cold tolerance: -26 °F minimum
Frost-free days: 200 min.
Precipitation: 12–155 in/yr
pH range: 6–8
Root depth: 6 in min.
Fertility need: Low
Soil texture: coarse, medium

§3c

Form & growth

Growth form: Single Crown
Growth rate: Rapid
Lifespan: Short
Mature height: 0.8 ft
Foliage texture: Fine
Foliage colour: Green
Porosity (summer): Porous
Porosity (winter): Porous
Flower colour: Green
Fruit colour: Brown
Fire resistant: Yes
N fixation: None
Toxicity: None

§3d

Reproduction

Bloom period: Early Summer
Seed abundance: High
Seed begins: Summer
Seed ends: Fall
Spread rate: Rapid
Stratify: No
Seeds / lb: 400,000
Propagation: seed

§3e

Use & availability

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

§4Counties, by state

Recorded in 4 counties across 1 state.

Montana view state ↗ 4 N ▾

§5Sources & provenance

USDA PLANTS

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

plants.usda.gov/DAUN ↗

GBIF Backbone

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

gbif.org/species/2703271 ↗

Record version

Cached and built locally. Source version on this record:

usda-plants-mt-2026-05-25

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