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American Eelgrass (Vallisneria Americana)

Vallisneria Americana, or more commonly know as American Eelgrass, is a forb/herb (a forb/herb is a non-woody plant that is not a grass) with green foliage of the genus Vallisneria. It has a rapid growth rate and a height of 1 feet at maturity. Its duration is perennial which means it will grow year after year. It’s active growth period is summer, blooms during mid summer and is intolerant of shade. Vallisneria Americana or American Eelgrass‘s floral region is North America US Lower 48, specifically in the states of Alabama, Arizona, California, Connecticut, Delaware, Florida, Georgia, Iowa, Idaho, Illinois, Indiana, Kentucky, Louisiana, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Mississippi, North Carolina, North Dakota, New Hampshire, New Jersey, New Mexico, Nevada, New York, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Virginia, Vermont, Washington and Wisconsin.

American Eelgrass (Vallisneria Americana) Information

  • Category: Monocot
  • Genus: Vallisneria
  • Family: Hydrocharitaceae
  • Order: Hydrocharitales
  • Class: Liliopsida
  • Division: Magnoliophyta
  • Duration: Perennial
  • Growth Habit: Forb/herb
  • Native Status: L48 (N) CAN (N)
  • State T/E Status: KY (SC)
  • State T/E Common Name: KY (eel-grass)
  • National Wetland Indicator Status: OBL
  • Regional Wetland Indicator Status: 1(OBL) 2(OBL) 3(OBL) 4(OBL) 5(OBL) 7(NI) 8(NI) 9(OBL)
  • Active Growth Period: Summer
  • After Harvest Regrowth Rate: None
  • Allelopath: No
  • Bloat: None
  • C:N Ratio: Low
  • Coppice Potential: No
  • Fall Conspicuous: No
  • Fire Resistance: Yes
  • Flower Conspicuous: No
  • Foliage Color: Green
  • Foliage Texture: Fine
  • Fruit/Seed Color: Green
  • Fruit/Seed Conspicuous: No
  • Growth Form: Stoloniferous
  • Growth Rate: Rapid
  • Height Mature (feet): 1
  • Leaf Retention: No
  • Lifespan: Short
  • Low Growing Grass: No
  • Resprout Ability: No
  • Shape and Orientation: Decumbent
  • Toxicity: None
  • Adapted to Coarse Textured Soils: Yes
  • Adapted to Fine Textured Soils: Yes
  • Adapted to Medium Textured Soils: Yes
  • Anaerobic Tolerance: High
  • CaCO3 Tolerance: None
  • Cold Stratification Required: No
  • Drought Tolerance: None
  • Fertility Requirement: Medium
  • Fire Tolerance: High
  • Frost Free Days Minimum: 90
  • Hedge Tolerance: None
  • Moisture Use: High
  • pH (Minimum): 6
  • pH (Maximum): 7.3
  • Planting Density per Acre Minimum: 2700
  • Planting Density per Acre Maximum: 4800
  • Root Depth Minimum (inches): 0
  • Salinity Tolerance: None
  • Shade Tolerance: Intolerant
  • Temperature Minimum (°F): -33
  • Bloom Period: Mid Summer
  • Commercial Availability: Routinely Available
  • Fruit/Seed Abundance: Low
  • Fruit/Seed Period Begin: Summer
  • Fruit/Seed Period End: Summer
  • Fruit/Seed Persistence: No
  • Propagated by Bare Root: No
  • Propagated by Bulbs: No
  • Propagated by Container: No
  • Propagated by Corms: No
  • Propagated by Cuttings: No
  • Propagated by Seed: Yes
  • Propagated by Sod: No
  • Propagated by Sprigs: Yes
  • Propagated by Tubers: No
  • Seed per Pound: 135000
  • Seed Spread Rate: Moderate
  • Seedling Vigor: Medium
  • Small Grain: No
  • Vegetative Spread Rate: Moderate

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