An aquatic South American perennial plant (Alternanthera philoxeroides) having opposite, lance-shaped leaves and tight clusters of small whitish flowers. It is a mat-forming weed in warm, freshwater habitats, such as the southeast United States.
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Alternanthera philoxeroides — ID 2929 Symbol Key ALPH Common Name alligatorweed Family Amaranthaceae Category Dicot Division Magnoliophyta US Nativity Introduced to U.S. US/NA Plant Yes State Distribution AL, AR, CA, FL, GA, IL, KY, LA, MS, NC, OK, PR, SC, TN, TX, VA Growth… … USDA Plant Characteristics
Closterovirus — Virus classification Group: Group IV ((+)ssRNA) Family: Closteroviridae Genus: Closterovirus … Wikipedia
Agasicles hygrophila — ? Agasicles hygrophila … Википедия
Alternanthera philoxeroides (Mart.) Griseb. — Symbol ALPH Common Name alligatorweed Botanical Family Amaranthaceae … Scientific plant list
Alternanthera — ID 2891 Symbol Key ALTER2 Common Name joyweed Family Amaranthaceae Category Dicot Division Magnoliophyta US Nativity N/A US/NA Plant Yes State Distribution AL, AR, AZ, CA, FL, GA, HI, IL, KY, LA, MD, MO, MS, NC, NJ, NM, NY, OK, PA, PR, SC, TN, TX … USDA Plant Characteristics