Index / Search / Alopecurus geniculatus

§1 Plant

Alopecurus geniculatus L.

vernacular water foxtail — species · Poaceae


USDA
ALGE2
GBIF
5290090
Rank
species
water foxtail (Alopecurus geniculatus)
Platephotograph · no rights reservedCC0 · public domain source · iNaturalist ↗

§2Habit & range

Habit and range

Growth habit
Graminoid
Duration
Perennial
Group
Monocot
Family
Poaceae Barnhart
Genus
Alopecurus
§2a

Native status, by region

  • AK Alaska Introduced
  • CAN Canada Introduced
  • GL Greenland Introduced
  • L48 Lower 48 States Introduced
  • SPM St. Pierre & Miquelon Introduced
§2b

County-level range

· 54 counties across 14 states/territories
Legend Native · 0 Introduced · 54 Both · 0 Hover a county for detail.

§3Cultivation specs · USDA

Recorded by the USDA Plant Materials Program.

§3a

Tolerances

Drought
None
Shade
High
Moisture use
High
Fire
None
Salinity
None
Anaerobic
High
CaCO₃
Low
Hedging
None
§3b

Climate & soil

Cold tolerance
-43 °F minimum
Frost-free days
100 min.
Precipitation
20–45 in/yr
pH range
4–7.5
Root depth
12 in min.
Fertility need
Low
Soil texture
coarse, medium, fine
§3c

Form & growth

Growth form
Stoloniferous
Growth rate
Moderate
Lifespan
Short
Mature height
2 ft
Foliage texture
Fine
Foliage colour
Green
Porosity (summer)
Porous
Porosity (winter)
Porous
Flower colour
Green
Fruit colour
Yellow
Fire resistant
No
N fixation
None
Toxicity
None
§3d

Reproduction

Bloom period
Summer
Seed abundance
Medium
Seed begins
Summer
Seed ends
Fall
Spread rate
Slow
Stratify
No
Seeds / lb
560,000
Propagation
seed, sprigs
§3e

Use & availability

Commercial availability
Routinely Available
Nursery stock
No
Browse palatability
Medium
Graze palatability
Medium
Palatable, human
No
Lumber
No
Christmas tree
No

§4Counties, by state

Recorded in 54 counties across 14 states/territories.

Alaska view state ↗ 5 I
Arizona view state ↗ 5 I
District of Columbia view state ↗ 1 I
Maine view state ↗ 4 I
Massachusetts view state ↗ 12 I
Minnesota view state ↗ 4 I
Montana view state ↗ 2 I
New Hampshire view state ↗ 2 I
New Jersey view state ↗ 1 I
New York view state ↗ 7 I
Pennsylvania view state ↗ 1 I
Rhode Island view state ↗ 1 I
Vermont view state ↗ 4 I
Virginia view state ↗ 5 I

§5Sources & provenance

USDA PLANTS

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

plants.usda.gov/ALGE2 ↗

GBIF Backbone

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

gbif.org/species/5290090 ↗

Record version

Cached and built locally. Source version on this record:

usda-plants-mt-2026-05-26

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