Noxious Weed List

General Notice to Destroy Weeds

By Order of the Board of Boundary County Commissioners

Notice is hereby given that, pursuant to the Idaho Noxious Weeds Law, Secttion 22-2408, Idaho Code, to every person who owns or controls land in Boundary County, that noxious weeds standing, being or growing on such lands shall be destroyed or eradicated by effective cutting, tillage, pasturing or treating with herbicides or other effective methods, or combination thereof approved by the County Weed Superintendent, as often as may be required to prevent the weed from blooming and maturing seeds, or spreading by root, root stalks, or other means. Upon failure to observe this notice, the County Weed Control Superintendent is required to proceed pursuant to the law and have weeds destroyed by such method as he or she finds necessary, the expense of which shall constitute a lien and be entered as a tax against the land, and be collected as other real taxes are collected or by other means as provided by law.

The following weeds are hereby officially designated and published as noxious, as per the authority vested in the Commissioner of Agriculture as per Section 22-2404, Idaho Code, and the Board of Boundary County Commissioners as per section 22-2405, Idaho Code:
Idaho's 65 Noxious Weeds designated noxious by state law. The spread of these weeds and the damage they do to Idaho agriculture can be lessened through proper identification and control.

* present in Boundary County

Common Name

 

Scientific Name

Black Henbane

 

Hyoscyamus niger

Bohemian Knotweed

 

Polygonum bohemicum

Brazilian Elodea

 

Egeria densa P.

Buffalobut

 

Solanmum rostratum

Canada Thistle

*

Cirsium arvense

Common Crupina

 

Crupina vulgaris

Common/European Frogbit

 

Hydrocharis morsus-ranae

Common Reed (Phragmites)

*

Phragmites australis

Curlyleaf Pondweed

*

Potamogeton crispus

Dalmation Toadflax

*

Linaria genistifolia ssp. dalmatica

Diffuse knapweed

*

Centaurea diffusa

Dyer's Woad

 

Isatis tinctoria

Eurasian Watermilfoil

*

Myriophyllum spicatum

Fanwort

 

Cabomba caroliniana 

Feathered Mosquito Fern   Azoola pinnata
Field Bindweed

*

Convolvulus arvensis

Flowering Rush   Butomus umbellatus
Giant Hogweed

 

Heracleum mantegazzianum

Giant Knotweed

 

Polygonum sachalinese

Giant Salvinia   Salvinia molesta
Hoary Alyssum

*

Beteroa incana
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 Knapweed

*

Centaurea pratensis

Mediterranean Sage

 

Salvia aethiopis

Milium

 

Milium vernale

Musk Thistle

 

Carduus nutans 

Orange Hawkweed

*

Hieracium aurantiacum

Oxeye Daisy

*

Chrysanthemum leucanthemum

Parrotfeather Milfoil

 

Myriophyllumaquaticum

Perennial Pepperweed

 

Lepidium latifolium

Plumeless Thistle   Carduus acanthoides
Poison Hemlock

*

Conium maculatum

Policeman's Helmet

*

Impatiens gladulifera

Puncturevine  

Tribulus terrestris

Purple Loosestrife

*

Lythrum salicaria

Rush Skeletonweed

*

Chrondrilla juncea

Russian Knapweed

*

Acroptilon repens

Saltcedar

 

Tamarix

Scotch Broom

*

Cytisus scoparius

Scotch Thistle

*

Onopordum acanthium

Small Bugloss

 *

Anchusa arvensis

Spotted Knapweed

*

Centaurea maculosa

Squarrose Knapweed

 

Centaurea squarrosa

Syrian Beancaper

 

Zygophullum fabago

Tall Hawkweed

 

Hieracium piloselloides

Tansy Ragwort  

Senecio jacobaea

Variable Leaf Milfoil

 

Myriophyllum heterophyllum

Vipers Bugloss

 

Echium vulgare

Water Chestnut

 

Trapa natans

Water Hyacinth

 

Eichoria crassipes

White Bryony

 

Bryonia alba

Whiteop

*

Cardaria draba

Yellow Devil Hawkwood

*

Hieracium glomeratum

Yellow Flag Iris   Iris pseudacorus
Yellow Floating Heart   Nymohoides peltata
Yellow Hawkweed * Hieracium caespitosum
Yellow Starthistle   Centauria solsititialis
Yellow Toadflax * Linaria vulgaris

Weeds of concern in Boundary County not on the State list:

Absinthe Wormwood

Artemesia absinthium

Common Tansy

Tanacetum vulgare

Kochia

Kochia scoparia

Queen Anne�s lace (wild carrot)

Daucus carota

Common mullein

Verbascum thapus

Horseweed

Conyza Canadensis

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