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#Noxious Weed (state list)

14 plants by

Scientific Common Name

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Causonis japonica

Bushkiller, Japanese Cayratia Herb, Sorrel Vine, Yabu Garashi

Compound leaves

Compound leaves

Leaves showing petiole of leaflets

Leaves showing petiole of leaflets

Underside of leaf, stem with long tendril

Underside of leaf, stem with long tendril

Celastrus orbiculatus

Asian Bittersweet, Chinese Bittersweet, Oriental Bittersweet

Open capsules with red seeds.

Open capsules with red seeds.

Aging & yellowing leaves and red seeds in open capsules.

Aging & yellowing leaves and red seeds in open capsules.

Leafy shoot with clusters of green flowers.

Leafy shoot with clusters of green flowers.

Leafy branch with green axillary flowers.

Leafy branch with green axillary flowers.

Branch with open capsules displaying red seeds.

Branch with open capsules displaying red seeds.

Small, dangling green flowers with 5 petals.

Small, dangling green flowers with 5 petals.

1 Cultivar/Variety

Cirsium arvense

Canada thistle, Creeping Thistle, Field Thistle, Swamp Thistle, Thistle

Pink thistle flowers & spiny leaves

Pink thistle flowers & spiny leaves

Pink thistle flowers & spiny leaves

Pink thistle flowers & spiny leaves

Rosette of spiny leaves

Rosette of spiny leaves

Pink thistle flowers & spiny leaves

Pink thistle flowers & spiny leaves

Rosette of spiny leaves

Rosette of spiny leaves

Ludwigia hexapetala

Creeping Water Primrose, Large-Flower Primrose Willow, Primrose Willow, Six Petal Water Primrose, Uruguay Primrose Willow

Flower and lanceolate leaves

Flower and lanceolate leaves

Leaves in a rosette

Leaves in a rosette

Back of flower, stems with hairs

Back of flower, stems with hairs

Stem and leaves

Stem and leaves

Lythrum salicaria

Purple Loosestrife

Lythrum salicaria

Lythrum salicaria

Myriophyllum spicatum

Eurasian watermilfoil, Spike Watermilfoil

Leaves and stem

Leaves and stem

Nymphoides cristata

Crested Floating Heart

Leaves with red margins

Leaves with red margins

Flower attachment

Flower attachment

Red underside of leaf

Red underside of leaf

Nymphoides peltata

Floating Heart, Yellow Floating Heart

Nymphoides pelatum

Nymphoides pelatum

Nymphoides pelatum

Nymphoides pelatum

Nymphoides pelatum

Nymphoides pelatum

Nymphoides pelatum

Nymphoides pelatum

Persicaria perfoliata

Asiatic Smartweed, Asiatic Tearthumb, Devil's Tail, Giant Climbing Tearthumb, Mile-a-minute, Mile-a-Minute Weed

Stem and Leaves

Stem and Leaves

Leaves and Fruit

Leaves and Fruit

Rhaponticum repens

Russian Knapweed, Turkistan Thistle

Form in June on Volgograd, Russia

Form in June on Volgograd, Russia

Form in September in Nye County, Nevada

Form in September in Nye County, Nevada

Flowers, leaves and stem in November in Qarshi, Uzbekistan

Flowers, leaves and stem in November in Qarshi, Uzbekistan

Flower in September in Nye County, Nevada

Flower in September in Nye County, Nevada

Flower section in June in Uintah County, Utah

Flower section in June in Uintah County, Utah

Mature leaf in June on Volgograd, Russia

Mature leaf in June on Volgograd, Russia

Rorippa sylvestris

Creeping Yellowcress, Fieldcress, Southern Yellowcress, Yellowcress, Yellow Fieldcress

Rorippa sylvestris L.

Rorippa sylvestris L.

Rorippa sylvestris L.

Rorippa sylvestris L.

Rorippa sylvestris L.

Rorippa sylvestris L.

Rorippa sylvestris L.

Rorippa sylvestris L.

Rorippa sylvestris L.

Rorippa sylvestris L.

Salvinia molesta

African Pyle, Aquarium Watermoss, Giant Salvinia, Kariba Weed, Waterfern

Young leaves are flatter

Young leaves are flatter

Infestation in an LA state park

Infestation in an LA state park

Egg beater structures

Egg beater structures

Tribulus terrestris

Goathead, Puncturevine

Form growing on a beach

Form growing on a beach

Leaves and flowers

Leaves and flowers

Hairy stem, leaves and fruit

Hairy stem, leaves and fruit

Compound leaves

Compound leaves

Vitex rotundifolia

Beach Vitex, Roundleaf Chastetree, Round-leaf Vitex

Vitex rotundifolia

Vitex rotundifolia

Vitex trifolia subsp. litoralis

Vitex trifolia subsp. litoralis

Vitex trifolia subsp. litoralis

Vitex trifolia subsp. litoralis