Index / Search / Ammannia coccinea

§1 Plant

Ammannia coccinea Rottb.

vernacular valley redstem — species · Lythraceae


USDA
AMCO
GBIF
3188711
Rank
species
valley redstem (Ammannia coccinea)
Platephotograph · Wayne LongbottomCC BY-NC source · iNaturalist ↗

§2Habit & range

Habit and range

Growth habit
Forb/herb, Subshrub
Duration
Annual
Group
Dicot
Family
Lythraceae J. St.-Hil.
Genus
Ammannia
§2a

Native status, by region

  • HI Hawaii Introduced
  • L48 Lower 48 States Native
  • PR Puerto Rico Native
  • VI U.S. Virgin Islands Native
§2b

County-level range

· 152 counties across 13 states/territories
Legend Native · 152 Introduced · 0 Both · 0 Hover a county for detail.

§3Cultivation specs · USDA

Recorded by the USDA Plant Materials Program.

§3a

Tolerances

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

Climate & soil

Cold tolerance
-38 °F minimum
Frost-free days
120 min.
Precipitation
16–60 in/yr
pH range
4–5.9
Root depth
12 in min.
Fertility need
Medium
Soil texture
medium, fine
§3c

Form & growth

Growth form
Single Crown
Growth rate
Moderate
Mature height
1.6 ft
Foliage texture
Medium
Foliage colour
Green
Porosity (summer)
Porous
Porosity (winter)
Porous
Flower colour
Purple
Fire resistant
No
N fixation
None
Toxicity
None
§3d

Reproduction

Bloom period
Indeterminate
Seed abundance
Low
Seed begins
Spring
Seed ends
Fall
Spread rate
Slow
Stratify
No
Seeds / lb
600,000
Propagation
seed
§3e

Use & availability

Commercial availability
No Known Source
Nursery stock
No
Graze palatability
High
Palatable, human
No
Lumber
No
Christmas tree
No

§4Counties, by state

Recorded in 152 counties across 13 states/territories.

Alabama view state ↗ 21 N
Arizona view state ↗ 4 N
Arkansas view state ↗ 44 N
Delaware view state ↗ 1 N
District of Columbia view state ↗ 1 N
Florida view state ↗ 17 N
Georgia view state ↗ 8 N
Kentucky view state ↗ 27 N
Maryland view state ↗ 6 N
New Jersey view state ↗ 1 N
Pennsylvania view state ↗ 5 N
Virginia view state ↗ 13 N
West Virginia view state ↗ 4 N

§5Sources & provenance

USDA PLANTS

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

plants.usda.gov/AMCO ↗

GBIF Backbone

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

gbif.org/species/3188711 ↗

Record version

Cached and built locally. Source version on this record:

usda-plants-mt-2026-05-26

fetched 2026-05-26T05:06:36Z