Index / Search / Isoetes riparia
§1 Plant
Isoetes riparia Engelm. ex A. Braun
vernacular shore quillwort — species · Isoetaceae
§2Habit & range
Habit and range
- Growth habit
- Graminoid
- Duration
- Perennial
- Group
- Quillwort
- Family
- Isoetaceae Dumort.
- Genus
- Isoetes
§2a
Native status, by region
- CAN Canada Native
- L48 Lower 48 States Native
§2b
County-level range
· 82 counties across 15 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 82 counties across 15 states/territories.
Delaware view state ↗ 3 N ▾
District of Columbia view state ↗ 1 N ▾
Maine view state ↗ 1 N ▾
Maryland view state ↗ 2 N ▾
Massachusetts view state ↗ 5 N ▾
New Hampshire view state ↗ 5 N ▾
New Jersey view state ↗ 15 N ▾
New York view state ↗ 15 N ▾
North Carolina view state ↗ 4 N ▾
Pennsylvania view state ↗ 16 N ▾
Rhode Island view state ↗ 2 N ▾
South Carolina view state ↗ 1 N ▾
Vermont view state ↗ 2 N ▾
Virginia view state ↗ 9 N ▾
West Virginia view state ↗ 1 N ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/ISRI ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/7465978 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T13:49:14Z