Category Archives: Aquatic Plants

Alligatorweed

  Scientific Name: Alternanthera philoxeroides (Mart.) Griseb Common Name: Alligatorweed Family: Amaranthaceae (Amaranth) Class: Dicot Description: Emersed or submersed perennial, leaves opposite and simple, flowering head of small white flowers borne in axils. US Distribution: Coastal states from Virginia to Texas … MORE »

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Cattail

Scientific Name Typha spp. L. (T. latifolia, T. glauca, T. angustifolia, T. domingensis) Common Name Cattail Family Typhaceae (Cattail) Class Monocot Description Primarily emergent from subterranean rhizome, leaves long and strap-like, flowers inconspicuous in floral head with sexes separate, wind pollinated … MORE »

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Coontail

Scientific Name Ceratophyllum demersum L. Common Name Coontail Family Ceratophyllaceae (Coontail) Class Dicot Description Submersed free-floating (rootless) plant, highly branched, with whorled palmately dissected leaves, flowers inconspicuous, prolific seed former; evergreen perennial US Distribution All of North America Worldwide Distribution Almost … MORE »

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Eurasian Watermilfoil

Scientific Name Myriophyllum spicatum L. Common Name Eurasian watermilfoil Family Haloragaceae (Watermilfoil) Class Dicot Description Mostly evergreen perennial; overwinters by root crown, aerial wind -pollinated flowers, spread by runners and autofragments US Distribution Essentially all lower 48 states, except southern … MORE »

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Hydrilla

 Scientific Name Hydrilla verticillata (L.f.) Royle Common Name Hydrilla Family Hydrocharitaceae (Frogbit) Class Monocot Description Perenniating mostly from tubers, propogates from tubers, turions, root crowns, and fragments; partially evergreen; white flowers US Distribution Diocieous form: southeastern US, Texas, California. Monoecious … MORE »

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Pickerelweed

Scientific Name Pontederia cordata L. Common Name Pickerelweed Family Pontederiaceae (Pickerelweed) Class Monocot Description Stout emergent with heart-shaped leaves growing from a swollen base, perennial from base, showy purple flower spike forming numerous seeds US Distribution Eastern North America Worldwide … MORE »

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Purple Loosestrife

Scientific Name Lythrum salicaria L. Common Name Purple Loosestrife Family Lythraceae (Loosestrife) Class Dicot Description Erect herbaceous perennial, overwinters by root crown, showy purple flowers, prolific seed production US Distribution Northern two-thirds of US and southern Canada Worldwide Distribution Temperate … MORE »

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Sago Pondweed

Scientific Name Stuckenia pectinata (L.) Böerner Common Name Sago Pondweed Family Potamogetonaceae (Pondweed) Class Monocot Description Submersed rooted, alternate long narrow leaves with distinct point, flowers emergent and inconspicuous, wind or water pollinated, reproduces by stolons and both subterranean and … MORE »

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Waterhyacinth

Scientific Name Eichhornia crassipes (Mart.) Solms Common Name Waterhyacinth Family Pontederiaceae (Pickerelweed) Class Monocot Description Floating rosette, showy purple flower, propagates vegetatively by daughter plant production US Distribution Gulf coast states, Florida, Georgia, South Carolina, Sacremento River Delta (California) Worldwide … MORE »

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Waterlettuce

Scientific Name Pistia stratiotes L. Common Name Waterlettuce Family Araceae (Arum) Class Monocot Description Floating rosette species, leaves with dense hairs, vegetatively reproduces by daughter plant formation; flowers inconspicuous US Distribution Coastal plain from Florida to Texas Worldwide Distribution Tropical … MORE »

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