PLANTS Profile for Alternanthera philoxeroides (alligatorweed)

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PLANTS Profile

Alternanthera philoxeroides (Mart.) Griseb.
alligatorweed

Symbol:

ALPH

Group:

Dicot

Family:

Amaranthaceae

Duration:

Perennial

Growth Habit:

Forb/herb

Native Status:

L48		I
PR		I

Click on the image below to enlarge it and download a high-resolution JPEG file.

Photo of Alternanthera philoxeroides (Mart.) Griseb.

Robert H. Mohlenbrock. USDA SCS. 1991. Southern wetland flora: Field office guide to plant species. South National Technical Center, Fort Worth. Courtesy of USDA NRCS Wetland Science Institute. Usage Requirements.

More Information:

Images:
Alternanthera philoxeroides (Mart.) Griseb.

Click on a thumbnail to view an image, or see all the Alternanthera thumbnails at the PLANTS Gallery

Synonyms:
Alternanthera philoxeroides (Mart.) Griseb.

ACPH

Achyranthes philoxeroides (Mart.) Standl.

Distribution:
Alternanthera philoxeroides (Mart.) Griseb.


View Native Status

See U.S. county distributions (when available) by clicking on the map or the linked states below:
USA (AL, AR, CA, FL, GA, IL, KY, LA, MS, NC, OK, SC, TN, TX, VA), USA+ (PR)

Related Taxa:
Alternanthera philoxeroides (Mart.) Griseb.

View 23 genera in Amaranthaceae, 15 species in Alternanthera

Classification:
Alternanthera philoxeroides (Mart.) Griseb.

Click on a scientific name below to expand it in the PLANTS Classification Report.


Kingdom	Plantae – Plants
Subkingdom	Tracheobionta – Vascular plants
Superdivision	Spermatophyta – Seed plants
Division	Magnoliophyta – Flowering plants
Class	Magnoliopsida – Dicotyledons
Subclass	Caryophyllidae
Order	Caryophyllales
Family	Amaranthaceae – Amaranth family
Genus	Alternanthera Forssk. – joyweed
Species	Alternanthera philoxeroides (Mart.) Griseb. – alligatorweed

Noxious Weed Information:
Alternanthera philoxeroides (Mart.) Griseb.

This plant and the related entity italicized and indented below are listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a complete noxious weed list for that location, or click here for a composite list of all Federal and State Noxious Weeds.

Alabama:
alligatorweed		Class C noxious weed
Arizona:
alligatorweed		Prohibited noxious weed
Arkansas:
Alternanthera
alligatorweed		Noxious weed
California:
alligatorweed		A list (noxious weeds)
Florida:
alligatorweed, green lead plant		Prohibited aquatic plant, Class 1
South Carolina:
alligatorweed		Invasive aquatic plant
alligatorweed, pigweed		Plant pest
Texas:
alligatorweed		Noxious plant

U.S. Weed Information:
Alternanthera philoxeroides (Mart.) Griseb.

alligator weed
Alternanthera
alligatorweed

This plant and the related entity italicized and indented above can be weedy or invasive according to the authoritative sources noted below. This plant may be known by one or more common names in different places, and some are listed above. Click on an acronym to view each weed list, or click here for a composite list of Weeds of the U.S.

STATE		Assorted authors. 200_. State noxious weed lists for 46 states. State agriculture or natural resource departments.
FLEPPC		Florida Exotic Pest Plant Council. 1999. Invasive plant list (19 October 1999). Florida Exotic Pest Plant Council. Florida.
SEEPPC		Southeast Exotic Pest Plant Council. 1996. Invasive exotic pest plants in Tennessee (19 October 1999). Research Committee of the Tennessee Exotic Pest Plant Council. Tennessee.
SWSS		Southern Weed Science Society. 1998. Weeds of the United States and Canada. CD-ROM. Southern Weed Science Society. Champaign, Illinois.

Introduced Information:
Alternanthera philoxeroides (Mart.) Griseb.

This plant is introduced to some part of the PLANTS Floristic Area, though it may be native in other parts. Click on link below for a partial or complete list of PFA introduced plants.

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Common Name=	A \| B \| C \| D \| E \| F \| G \| H \| I \| J \| K \| L \| M \| N \| O \| P \| Q \| R \| S \| T \| U \| V \| W \| X \| Y \| Z \| all