Index / Search / Ammannia robusta
§1 Plant
Ammannia robusta Heer & Regel
vernacular grand redstem — species · Lythraceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Annual
- Group
- Dicot
- Family
- Lythraceae J. St.-Hil.
- Genus
- Ammannia
§2a
Native status, by region
- CAN Canada Native
- L48 Lower 48 States Native
§2b
County-level range
· 100 counties across 21 states/territories§3Cultivation
No cultivation specs.
USDA has not characterised this taxon. Roughly four out of five plants in the database lack the detailed cultivation record present here — typically because they have not been the focus of NRCS Plant Materials work. Range and distribution data are unaffected.
§4Counties, by state
Recorded in 100 counties across 21 states/territories.
Arkansas view state ↗ 2 N ▾
California view state ↗ 13 N ▾
Colorado view state ↗ 4 N ▾
Idaho view state ↗ 1 N ▾
Illinois view state ↗ 5 N ▾
Indiana view state ↗ 4 N ▾
Iowa view state ↗ 1 N ▾
Kentucky view state ↗ 9 N ▾
Michigan view state ↗ 2 N ▾
Missouri view state ↗ 1 N ▾
Montana view state ↗ 4 N ▾
New Jersey view state ↗ 1 N ▾
Ohio view state ↗ 19 N ▾
Tennessee view state ↗ 4 N ▾
Texas view state ↗ 6 N ▾
Utah view state ↗ 4 N ▾
Washington view state ↗ 6 N ▾
Wisconsin view state ↗ 2 N ▾
Wyoming view state ↗ 2 N ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/AMRO3 ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/3188708 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T20:46:58Z