Index / Search / Pilularia americana
§1 Plant
Pilularia americana A. Braun
vernacular American pillwort — species · Marsileaceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Perennial
- Group
- Fern
- Family
- Marsileaceae Mirb.
- Genus
- Pilularia
Native status, by region
- L48 Lower 48 States Native
County-level range
· 72 counties across 12 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 72 counties across 12 states/territories.
Arkansas view state ↗ 7 N ▾
California view state ↗ 37 N ▾
- Alameda 06001
- Butte 06007
- Calaveras 06009
- Colusa 06011
- Contra Costa 06013
- Fresno 06019
- Glenn 06021
- Lake 06033
- Lassen 06035
- Madera 06039
- Marin 06041
- Mendocino 06045
- Merced 06047
- Modoc 06049
- Monterey 06053
- Orange 06059
- Placer 06061
- Plumas 06063
- Riverside 06065
- Sacramento 06067
- San Benito 06069
- San Bernardino 06071
- San Diego 06073
- San Joaquin 06077
- San Luis Obispo 06079
- Santa Barbara 06083
- Santa Clara 06085
- Shasta 06089
- Sierra 06091
- Solano 06095
- Sonoma 06097
- Stanislaus 06099
- Sutter 06101
- Tehama 06103
- Tulare 06107
- Tuolumne 06109
- Ventura 06111
Georgia view state ↗ 7 N ▾
Kansas view state ↗ 3 N ▾
Missouri view state ↗ 2 N ▾
Nebraska view state ↗ 1 N ▾
North Carolina view state ↗ 1 N ▾
Oklahoma view state ↗ 2 N ▾
Tennessee view state ↗ 3 N ▾
Texas view state ↗ 3 N ▾
Washington view state ↗ 1 N ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/PIAM ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/2650102 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T20:46:58Z