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alligatorweed
Alternanthera philoxeroides (Mart.) Griseb.


Taxonomic Rank: Magnoliopsida > Caryophyllales > Amaranthaceae > Alternanthera
Common Name Synonym(s): alligator weed, pig weed
Taxonomic Synonym(s):
Achyranthes philoxeroides (Mart.) Griseb.
Category: Plants: Aquatic
Category: Plants: Forbs/Herbs

68 Records
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1116005
1116005

Infestation
Charles T. Bryson

1391119
1391119

Plant(s)
John D. Byrd

1391120
1391120

Plant(s)
John D. Byrd

1391180
1391180

Flower(s)
John D. Byrd

1391181
1391181

Plant(s)
John D. Byrd

1391182
1391182

Plant(s)
John D. Byrd

1391183
1391183

Flower(s)
John D. Byrd

1539022
1539022

Plant(s)
James H. Miller

1539023
1539023

Flower(s)
James H. Miller

1539024
1539024

Flower(s)
James H. Miller

1539025
1539025

Infestation
James H. Miller

1539026
1539026

Plant(s)
James H. Miller

1539027
1539027

Plant(s)
James H. Miller

1539028
1539028

Foliage
James H. Miller

1539029
1539029

Plant(s)
James H. Miller

1539030
1539030

Plant(s)
James H. Miller

2117073
2117073

Foliage
Chris Evans

2117074
2117074

Foliage
Chris Evans

2117075
2117075

Infestation
Chris Evans

2117076
2117076

Flower(s)
Chris Evans

2117077
2117077

Flower(s)
Chris Evans

2117078
2117078

Plant(s)
Chris Evans

2117079
2117079

Plant(s)
Chris Evans

2117080
2117080

Infestation
Chris Evans

2117081
2117081

Infestation
Chris Evans

2117082
2117082

Plant(s)
Chris Evans

2117083
2117083

Plant(s)
Chris Evans

2117084
2117084

Infestation
Chris Evans

2117085
2117085

Infestation
Chris Evans

2117087
2117087

Infestation
Chris Evans

2117088
2117088

Flower(s)
Chris Evans

2117089
2117089

Flower(s)
Chris Evans

2117090
2117090

Plant(s)
Chris Evans

2117091
2117091

Plant(s)
Chris Evans

2117093
2117093

Flower(s)
Chris Evans

2117094
2117094

Infestation
Chris Evans

2117095
2117095

Foliage
Chris Evans

2117096
2117096

Plant(s)
Chris Evans

2131098
2131098

Plant(s)

in flower


Chris Evans

2132019
2132019

Infestation
James H. Miller

2132020
2132020

Plant(s)
James H. Miller

2155001
2155001

Plant(s)
John D. Byrd

2188019
2188019

Infestation
Along with parrotfeather milfoil
Chris Evans

4723001
4723001

mats grow from shore and often cover entire waterways thereby disrupting water flow and causing flooding.
Gary Buckingham

4723002
4723002

Plant(s)
has opposite, non-succulent leaves
USDA ARS Archive

4723003
4723003

Flower(s)
the white flowers are arranged in stalked, short, headlike spikes, and have a style
Gary Buckingham

5225062
5225062

Flower(s)
Richard Old

5225063
5225063

Plant(s)

in flower


Richard Old

5306061
5306061

Diagram or Graphic
USDA NRCS. Wetland flora: Field office illustrated guide to plant species. USDA Natural Resources Conservation Service.
USDA PLANTS Database

5376307
5376307

Fruit(s)
Julia Scher

5379488
5379488

Infestation
James H. Miller

5379489
5379489

Infestation
James H. Miller

5379490
5379490

Infestation

Alligator weed and pampasgrass (Cortaderia jubata) infestation.


James H. Miller

5379491
5379491

Infestation

Alligator weed and pampasgrass (Cortaderia jubata) infestation.


James H. Miller

5379492
5379492

Plant(s)
James H. Miller

5379493
5379493

Plant(s)
James H. Miller

5379494
5379494

Stem(s)

upright stem


James H. Miller

5391851
5391851

Plant(s)

Leafy menace


John M. Randall

5391852
5391852

Infestation

In a canal


John M. Randall

5391853
5391853

Infestation

Where's the beach?


John M. Randall

5400220
5400220

Plant(s)
Graves Lovell

5400221
5400221

Plant(s)
Graves Lovell

5400222
5400222

Plant(s)
Graves Lovell

5400223
5400223

Infestation
Graves Lovell

5400224
5400224

Flower(s)
Graves Lovell

5400225
5400225

Flower(s)
Graves Lovell

5400226
5400226

Plant(s)
Graves Lovell

5400227
5400227

Plant(s)
Graves Lovell




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