Idaho Admin. Code r. 02.06.09.220 - NOXIOUS WEEDS - DESIGNATIONS

The weeds listed on the Statewide Prohibited Genera, EDRR, Containment, and Control lists are hereby officially designated and published as noxious. (3-15-22)

01. Statewide Prohibited Genera Noxious Weed List. (3-15-22)

a. All plants and plant parts in the generas of: Cytisus, Genista, Spartium, and Chamaecytisus additionally including "all" subtaxa of these plant genera are prohibited in Idaho. (3-15-22)

b. Weeds listed in the Prohibited Genera list may exist in varying populations throughout the state. The concentration of these weeds is at a level where control and/or eradication may be possible. A written plan for weeds on the Statewide Prohibited Genera Noxious Weed List shall be developed by the control authority that specifies active control methods to reduce known populations in not more than five (5) years. The plan shall be available to the Department upon request. (3-15-22)

02. Statewide EDRR Noxious Weed List. If any of the listed plants (Subsection 220.02) are found to occur in Idaho, they shall be reported to the Department within ten (10) days following positive identification by the University of Idaho or other qualified authority as approved by the Director. These weeds shall be eradicated during the same growing season as identified.

Common Name	Scientific Name
1. Brazilian Elodea	Egeria densa
2. Common/European Frogbit	Hydrcharis morsus-ranae
3. Fanwort	Cobomba caroliniana
4. Feathered Mosquito Fern	Azolla pinnata
5. Giant Hogweed	Heracleum mantegazzianum
6. Giant Salvinia	Salvinia molesta
7 Goatsrue	Galega officinalis
8. Hydrilla	Hydrilla verticillata
9. Iberian Starthistle	Centaurea iberica
10. Policeman's Helmet	Impatiens glandulifera
11. Purple Starthistle	Centaurea calcitrapa
12. Squarrose Knapweed	Centaurea triumfetti
13. Starry Stonewort	Nitellopsis obtusa
14. Syrian Beancaper	Zygophyllum fabago
15. Tall Hawkweed	Hieracium piloselloides
16. Turkish Thistle	Carduus cinereus
17. Variable-Leaf-Milfoil	Myriophyllum heterophyllum
18. Water Chestnut	Trapa natans
19. Water Hyacinth	Eichhornia crassipes
20. Yellow Devil Hawkweed	Hieracium glomeratum
21. Yellow Floating Heart	Nymphoides pelata

(3-15-22)

03. Statewide Control Noxious Weed List. Weeds listed in the control list are known to exist in varying populations throughout the state. The concentration of these weeds is at a level where control or eradication, or both, may be possible. A written plan for weeds on the Statewide Control Noxious Weed List shall be developed by the control authority that specifies active control methods to reduce known populations in not more than five (5) years. The plan shall be available to the Department upon request.

Common Name	Scientific Name
1. Black Henbane	Hyoscyamus niger
2. Bohemian Knotweed	Polygonum X bohemicum
3. Buffalobur	Solanum rostratum
4. Common Crupina	Crupina vulgaris
5. Common Reed (Phragmites)	Phragmites australis
6. Dyer's Woad	Isatis tinctoria
7. Eurasian Watermilfoil	Myriophyllum spicatum (and hybrids)
8. Flowering Rush	Butomus umbelltus
9. Giant Knotweed	Polygonum sachalinense
10. Japanese Knotweed	Polygonum cuspidatum
11. Johnsongrass	Sorghum halepense
12. Matgrass	Nardus stricta
13. Meadow Knapweed	Centaurea debeauxii
14. Mediterranean Sage	Salvia aethiopis
15. Musk Thistle	Carduus nutans
16. Orange Hawkweed	Hieracium aurantiacum
17. Parrotfeather Milfoil	Myriophyllum aquaticum
18. Perennial Sowthistle	Sonchus arvensis
19. Russian Knapweed	Acroptilon repens
20. Scotch Broom	Cytisus scoparius
21. Small Bugloss	Anchusa arvensis
22. Vipers Bugloss	Echium vulgare
23. Yellow Hawkweed	Hieracium caespitosum

(3-15-22)

04. Statewide Containment Noxious Weed List. Weeds listed in the containment noxious weeds list are known to exist in various populations throughout the state. Weed control efforts may be directed at reducing or eliminating new or expanding weed populations while known and established weed populations, as determined by the weed control authority, may be managed by any approved weed control methodology, as determined by the weed control authority.

Common Name	Scientific Name
1. Canada Thistle	Cirsium arvense
2. Curlyleaf Pondweed	Potamogeton crispus
3. Dalmatian Toadflax	Linaria dalmatica ssp. dalmatica
4. Diffuse Knapweed	Centaurea diffusa
5. Field Bindweed	Convolvulus arvensis
6. Hoary Alyssum	Berteroa incana
7. Houndstongue	Cynoglossum officinale
8. Jointed Goatgrass	Aegilops cylindrica
9. Leafy Spurge	Euphorbia esula
10. Milium	Milium vernale
11. Oxeye Daisy	Leucanthemum vulgare
12. Perennial Pepperweed	Lepidium latifolium
13. Plumeless Thistle	Carduus acanthoides
14. Poison Hemlock	Conium maculatum
15. Puncturevine	Tribulus terrestris
16. Purple Loosestrife	Lythrum salicaria
17. Rush Skeletonweed	Chondrilla juncea
18. Saltcedar	Tamarix sp.
19. Scotch Thistle	Onopordum acanthium
20. Spotted Knapweed	Centaurea stoebe
21. Tansy Ragwort	Senecio jacobaea
22. White Bryony	Bryonia alba
23. Whitetop (Hoary Cress)	Cardaria draba
24. Yellow Flag Iris	Iris psudocorus
25. Yellow Starthistle	Centaurea solstitialis
26. Yellow Toadflax	Linaria vulgaris

(3-15-22)

05. Designation of Articles Capable of Disseminating Noxious Weeds. The following articles are designated by the Director as capable of disseminating noxious weeds: (3-15-22)

a. Construction equipment, road building and maintenance equipment, and implements of husbandry. (3-15-22)

b. Motorized vehicles such as, all-terrain vehicles, motorcycles, and other off-road vehicles and nonmotorized vehicles such as bicycles and trailers. (3-15-22)

c. Grain and seed. (3-15-22)

d. Hay, straw and other material of similar nature. (3-15-22)

e. Nursery stock including plant material propagated for the support of aquarium, pet, or horticultural activities. (3-15-22)

f. Feed and seed screenings. (3-15-22)

g. Fence posts, fencing and railroad ties. (3-15-22)

h. Sod. (3-15-22)

i. Manure, fertilizers and material of similar nature. (3-15-22)

j. Soil, sand, mulch, and gravel. (3-15-22)

k. Boats, personal watercraft, watercraft trailers, and items of a similar nature. (3-15-22)

Notes

Idaho Admin. Code r. 02.06.09.220