Index / Search / Agrostis exarata
§1 Plant
Agrostis exarata Trin.
vernacular spike bentgrass — species · Poaceae
§2Habit & range
Habit and range
- Growth habit
- Graminoid
- Duration
- Perennial
- Group
- Monocot
- Family
- Poaceae Barnhart
- Genus
- Agrostis
§2a
Native status, by region
- AK Alaska Native
- CAN Canada Native
- L48 Lower 48 States Native
§2b
County-level range
· 36 counties across 5 states/territories§3Cultivation specs · USDA
Recorded by the USDA Plant Materials Program.
§3a
Tolerances
- Drought
- Low
- Shade
- High
- Moisture use
- Medium
- Fire
- Medium
- Salinity
- Low
- Anaerobic
- Medium
- CaCO₃
- Low
- Hedging
- None
§3b
Climate & soil
- Cold tolerance
- -38 °F minimum
- Frost-free days
- 90 min.
- Precipitation
- 6–30 in/yr
- pH range
- 5.5–7.5
- Root depth
- 10 in min.
- Fertility need
- Medium
- Soil texture
- coarse, medium, fine
§3c
Form & growth
- Growth form
- Rhizomatous
- Growth rate
- Moderate
- Lifespan
- Moderate
- Mature height
- 3 ft
- Foliage texture
- Medium
- Foliage colour
- Green
- Porosity (summer)
- Porous
- Porosity (winter)
- Porous
- Flower colour
- Yellow
- Fruit colour
- Brown
- Fire resistant
- No
- N fixation
- None
- Toxicity
- None
§3d
Reproduction
- Bloom period
- Late Spring
- Seed abundance
- Low
- Seed begins
- Summer
- Seed ends
- Summer
- Spread rate
- Slow
- Stratify
- No
- Seeds / lb
- 5,600,000
- Propagation
- seed
§3e
Use & availability
- Commercial availability
- Contracting Only
- Nursery stock
- No
- Browse palatability
- Medium
- Graze palatability
- High
- Palatable, human
- No
- Protein potential
- Medium
- Lumber
- No
- Christmas tree
- No
§4Counties, by state
Recorded in 36 counties across 5 states/territories.
Alaska view state ↗ 19 N ▾
- Aleutians East 02013
- Aleutians West 02016
- Anchorage 02020
- Bethel 02050
- Chugach 02063
- Copper River 02066
- Fairbanks North Star 02090
- Haines 02100
- Juneau 02110
- Kenai Peninsula 02122
- Kodiak Island 02150
- Lake and Peninsula 02164
- Matanuska-Susitna 02170
- Nome 02180
- North Slope 02185
- Sitka 02220
- Southeast Fairbanks 02240
- Yakutat 02282
- Yukon-Koyukuk 02290
Arizona view state ↗ 12 N ▾
Kentucky view state ↗ 1 N ▾
Montana view state ↗ 3 N ▾
Vermont view state ↗ 1 N ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/AGEX ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/2706526 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T05:06:36Z