Vallisneria americana

Characteristics
Monocots
Hydrocharitaceae
Vallisneria
Vallisneria americana Michx.
American Eel Grass
forb
10
**
Native AGCP (OBL), EMP (OBL) (NWPL) TN[SNR] KY[S2S3] (State Rank) G5 (Global Rank)
Armaments
No
Base Flower Color
White
Carpel Number/Pistil
0; 1; 2; 3; 4; 5; 6
Duration
Perennial
Fruit Dehiscence
Yes
Fruit Type
Capsule
Fruit Wet/Dry
Dry
General Ecology
Aquatic; Terrestrial
Growth Habit
forb
Leaf Arrangement
basal
Leaf Complexity
simple
Leaf Dissection
0
Leaf Duration
deciduous
Leaf Fragrance
No
Leaf Petiole Type
sessile
Leaf Type
grass-like; sword-like
Leaf Venation
parallel
Leaflet Margins
entire
Leaflet Number
0
Moisture Requirements
Hydric; Inundated
Natural Area Presence
PCSF; UCR
Overall Flower Symmetry
Actinomorphic
Parent Rock
Calcareous; Chert; Limestone; Sandstone
Soil Composition
Mineral; Organic
Soil pH
Acidic; Alkaline; Circumneutral
Unconsolidated Rock
Yes
Unconsolidated Size Class
Clay; Sand; Silt
Woody Herbaceous
Herbaceous
View details of Herbarium specimens
** Not applicable or data not available.
Classification
Hydrocharitales
Vallisneria
Vallisneria americana Michx. - American Eel Grass
Species Distribution Map

This species has been reported in the counties highlighted in the interactive distribution map below. Click on a county to display its name.

Click the question mark icon () to view additional information about the ecoregions shown. In the map legend, there are links to toggle the visibility of the ecoregions and/or their labels. In addition, clicking on an ecoregion name will highlight that region on the map.

Ecoregions
  • Southeastern Plains
    • Blackland Prarie
  • Blue Ridge Mountains
  • Ridge and Valley
  • Cumberland Plateau
  • Cumberland Mountains
  • Allegheny Plateau
  • Interior Plateau
    • Bluegrass Region
    • Nashville Basin
    • Pennyroyal Karst Plain
    • Western Highland Rim
    • Eastern Highland Rim
  • Interior River Valleys and Hills
    • Shawnee / Caseyville Hills
  • Mississippi Alluvial Plain
  • Mississippi Valley Loess Plains
Synonyms
Specimens and Distribution

Click on an Accession Number to view additional details about the specimen.

Range of years during which specimens were collected:

Plant Photos
Vallisneria americana - 13
Vallisneria americana - Dwayne Estes View Full Size
Vallisneria americana - 13
Vallisneria americana - Dwayne Estes View Full Size
Vallisneria americana - 13
Vallisneria americana - Dwayne Estes View Full Size
Vallisneria americana - 20
Vallisneria americana - Milo Pyne View Full Size
Vallisneria americana - 20
Vallisneria americana - Milo Pyne View Full Size