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Hydrilla verticillata ... Hydrilla is a submersed plant. It can grow to the surface and form dense mats. It may be found in all types of water bodies. ... Hydrilla stems are slender, branched and up to 25 feet long. Hydrilla's small leaves are strap-like and pointed. They grow in whorls of four to eight around the stem.
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plants.ifas.ufl.edu/node/183
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The submersed macrophyte hydrilla (Hydrilla verticillata (L.F.) Royle), which is native to the warmer areas of Asia, was first discovered in the United States in 1960. A highly specialized growth habit, physiological characteristics, and reproduction make this plant well adapted to life in submersed...
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plants.ifas.ufl.edu/node/184
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Hydrilla - Wikipedia, the free encyclopedia
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Hydrilla ( Esthwaite Waterweed or Hydrilla ) is an aquatic plant genus, usually treated as containing just one species, Hydrilla verticillata , though some botanists divide it into severa...
en.wikipedia.org/wiki/Hydrilla
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General Information About Hydrilla ... Many aquatic weed scientists consider Hydrilla verticillata the most problematic aquatic plant in the United States. This plant, native to Africa, Australia, and parts of Asia, was introduced to Florida in 1960 via the aquarium trade.
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www.ecy.wa.gov/Programs/wq/plants/weeds/hydrilla.html
www.ecy.wa.gov/Programs/wq/plants/weeds/hydrilla.html
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A species profile for Hydrilla from USDA's National Invasive Species Information Center. ... Hydrilla verticillata; Integrated Taxonomic Information System. Taxonomy...
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www.invasivespeciesinfo.gov/aquatics/hydrilla.shtml
www.invasivespeciesinfo.gov/aquatics/hydrilla.shtml
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Hydrilla verticillata ... Hydrilla is a perennial plant that forms dense colonies and can grow to the surface in water over 20 feet deep. Hydrilla branches profusely and after reaching the surface it extends across it forming thick mats. Hydrilla can reproduce by fragmentation, from seeds, from turions (axilary buds),
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aquaplant.tamu.edu/database/submerged_plants/hydrilla.h...
aquaplant.tamu.edu/database/submerged_plants/hydrilla.htm
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Fishing, boating, scuba diving, and other recreational activities can spread aquatic nuisance species to new lakes, rivers, and streams. ... What does Hydrilla look like?
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www.protectyourwaters.net/hitchhikers/plants_hydrilla.p...
www.protectyourwaters.net/hitchhikers/plants_hydrilla.php
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Hydrilla is a non-native aquatic plant that is spreading rapidly in Lake Austin and many other Texas water bodies, threatening drinking water intakes, recreation and navigation on the lake.
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www.ci.austin.tx.us/watershed/hydrilla.htm
www.ci.austin.tx.us/watershed/hydrilla.htm
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Figure 1. Growing tip of hydrilla. Note crowded internodes at tips. ... Figure 2. Heavy infestation of hydrilla at Rodman Reservoir (August 2, 1978). The rapid underwater growth 'pushes' a portion of the mat above the water, giving the reservoir a field-like appearance.
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www.invasive.org/eastern/biocontrol/7Hydrilla.html
www.invasive.org/eastern/biocontrol/7Hydrilla.html
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[hī-drĭĺə]
