Invasive

Species Types

circular white flower with star-like clusters of tiny white petals

Wild Chervil

Anthriscus sylvestris

Invasive / Plant / Shaded Forest/Woodland / Sunny Areas
patch of tall reed canary grass in a large field

Reed canarygrass

Phalaris arundinacea

Agricultural / Aquatic/Semiaquatic / Invasive / Plant / Sunny Areas
Photo: King County, WA

Policeman’s helmet

Impatiens glandulifera

Early Detection Rapid Response / Invasive / Plant / Shaded Forest/Woodland / Sunny Areas
yellow archangel_Sunlight Condos_MA_2012_05_10 (1)

Yellow archangel

Lamium galeobdolon

Invasive / Plant / Shaded Forest/Woodland / Sunny Areas
waterprimrose5

Water primrose

Ludwigia peploides

Aquatic/Semiaquatic / Early Detection Rapid Response / Invasive / Plant / Sunny Areas
False indigo_by Andrey Zharkikh

Desert false indigo

Amorpha fruticosa

Aquatic/Semiaquatic / Invasive / Plant / Sunny Areas

Italian arum

Arum italicum

Invasive / Plant / Shaded Forest/Woodland / Sunny Areas / Toxic
yellow-flag-iris-invasive

Yellow flag iris

Iris pseudacorus

Aquatic/Semiaquatic / Invasive / Plant / Sunny Areas
Photo: USDA

Purple loosestrife

Lythrum salicaria

Aquatic/Semiaquatic / Early Detection Rapid Response / Invasive / Plant / Sunny Areas
Japanese Knotweed_by Maja Dumat_tinyurlcomJapanese-Knotweed_cmyk

Japanese knotweed

Polygonum cuspidatum

Agricultural / Aquatic/Semiaquatic / Early Detection Rapid Response / Invasive / Plant / Sunny Areas
spurge laurel

Spurge laurel

Daphne laureola

Early Detection Rapid Response / Invasive / Plant / Shaded Forest/Woodland / Toxic
orange hawkweed_Gail Hampshire

Orange hawkweed

Hieracium aurantiacum

Early Detection Rapid Response / Invasive / Plant / Shaded Forest/Woodland / Sunny Areas
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