VIRTUAL FIELD GUIDE >> Noxious Weed List

Noxious Weed List                       

This Noxious Weed List contains information about Idaho's 66 noxious weeds. Click on a weed below to learn more and to view a multimedia Photo Gallery. Some of the weeds on this list also contain video sequences. Most of these weeds link to 360 degree panorama views and additional video sequences in the Interactive Map of Idaho section. You will need the free Quicktime Player to view the Photo Galleries.

• Brazilian Elodea
  Egeria densa
• Black Henbane
  Hyoscyamus niger
• Bohemian Knotweed
  Polygonum bohemicum
• Buffalobur
  Solanum rostratum
• Canada Thistle
  Cirsium arvense
• Common Crupina
  Crupina vulgaris
• Common/European Frogbit
  Hydrcharis morsus-ranae
• Common Reed (Phragmites)
  Phragmites australis
• Curlyleaf Pondweed
  Potamogeton crispus
• Dalmatian Toadflax
  Linaria genistifolia ssp. dalmatica
• Diffuse Knapweed
  Centaurea diffusa
• Dyer's Woad
  Isatis tinctoria
• Eurasian Watermilfoil
  Myriophyllum spicatum
• Fanwort
  Cobomba caroliniana
• Feathered Mosquito Fern
  Azolla pinnata
• Field Bindweed
  Convolvulus arvensis
• Flowering Rush
  Butomus umbelltus
• Giant Hogweed
  Heracleum mantegazzianum
• Giant knotweed
  Polygonum sachalinense
• Giant Salvinia
  Salvinia molesta
• Hoary Alyssum
  Berteroa incana
• Hoary Cress (Whitetop)
  Lepidium draba ssp. draba
• Houndstongue
  Cynoglossum officinale
• Hydrilla
  Hydrilla verticillata
• Japanese Knotweed
  Polygonum cuspidatum
• Johnsongrass
  Sorghum halepense
• Jointed Goatgrass
  Aegilops cylindrica
• Leafy Spurge
  Euphorbia esula
• Matgrass
  Nardus stricta
• Meadow Hawkweed
  Hieracium caespitosum
• Meadow Knapweed
  Centaurea debeauxii ssp. thuillieri
• Mediterranean Sage
  Salvia aethiopis

• Milium
  Milium vernale
• Musk Thistle
  Carduus nutans
• Orange Hawkweed
  Hieracium aurantiacum
• Oxeye Daisy
  Chrysanthemum leucanthemum
• Parrotfeather Milfoil
  Myriophyllum aquaticum
• Perennial Pepperweed
  Lepidium latifolium
• Perennial Sowthistle
  Sonchus arvensis
• Plumeless Thistle
  Carduus acanthoides
• Poison Hemlock
  Conium maculatum
• Policeman's Helmet
  Impatiens glandulifera
• Puncturevine
  Tribulus terrestris
• Purple Loosestrife
  Lythrum salicaria
• Rush Skeletonweed
  Chondrilla juncea
• Russian Knapweed
  Acroptilon repens
• Saltcedar
  Tamarix ssp.
• Scotch Broom
  Cytisus scoparius
• Scotch Thistle
  Onopordum acanthium
• Small Bugloss
  Anchusa arvensis
• Spotted Knapweed
  Centaurea stoebe ssp. micranthos
• Squarrose Knapweed
  Centaurea triumfetti
• Syrian Beancaper
  Zygophyllum fabago
• Tall Hawkweed
  Hieracium piloselloides
• Tansy Ragwort
  Senecia jacobaea
• Variable-Leaf-Milfoil
  Myriophyllum heterophyllum
• Vipers Bugloss
  Echium vulgare
• Water Chestnut
  Trapa natans
• White Bryony
  Bryonya alba
• Yellow Devil Hawkweed
  Hieracium glomeratum
• Yellow Flag Iris
  Iris psudocorus
• Yellow Floating Heart
  Nymphoides pelata
• Yellow Starthistle
  Centaurea solstitialis
• Yellow Toadflax
  Linaria vulgaris