Washington State Noxious Weed List Class a Noxious Weeds - Eradication Required Class B Noxious Weeds-Continued Class C Noxious Weeds
Total Page:16
File Type:pdf, Size:1020Kb
) pungens Hemizonia (previously Centromadia pungens pungens Centromadia , Spikeweed Noxious Weed Scientific Name Update: Name Scientific Weed Noxious Palouse Prairie habitat. Prairie Palouse Infestation Hawthorn English crowding out native species to rapidly degrade the the degrade rapidly to species native out crowding root system. Perhaps more concerning still, it is is it still, concerning more Perhaps system. root NWCB County Juan San of courtesy Image contribute to soil erosion due to it’s shallow 2 inch inch 2 shallow it’s to due erosion soil to contribute reduce hay yields. Ventenata is also known to to known also is Ventenata yields. hay reduce production systems, where it can significantly significantly can it where systems, production Gerald of Carr courtesy Image is a particular problem in pasture, CRP, and hay hay and CRP, pasture, in problem particular a is it is most prevalent in the southeastern region. It It region. southeastern the in prevalent most is it Hawthorn English Ventenata Washington, In Northwest. Pacific the throughout and managed areas in the past two decades decades two past the in areas managed and perennial grass systems and in disturbed areas areas disturbed in and systems grass perennial annual grass that has rapidly expanded in in expanded rapidly has that grass annual Ventenata is another weedy, nonnative, invasive, invasive, nonnative, weedy, another is Ventenata Image courtesy of Rich Old, XID Services Old, Rich of courtesy Image Ventenata dubia Ventenata Ventenata, : weed noxious C Class New native western hawthorn. hawthorn. western native Hawthorn is also capable of hybridizing with the the with hybridizing of capable also is Hawthorn valuable forage and can harm grazing animals. grazing harm can and forage valuable altering grassland and forest habitat. English English habitat. forest and grassland altering where it significantly reduces native plants and and plants native reduces significantly it where restricting the movement of wildlife, and and wildlife, of movement the restricting including grasslands and sagebrush steppe, steppe, sagebrush and grasslands including pasture and economically important land, land, important economically and pasture The unpalatable grass invades many ecosystems, ecosystems, many invades grass unpalatable The land and in natural areas, invading prime prime invading areas, natural in and land produce as much as 243 million seeds per acre. acre. per seeds million 243 as much as produce Island, where it is encroaching on agricultural agricultural on encroaching is it where Island, as two years. Moreover, the plant is estimated to to estimated is plant the Moreover, years. two as Washington, most particularly on San Juan Juan San on particularly most Washington, into the soil and its seeds remain viable for as long long as for viable remain seeds its and soil the into It has been escaping cultivation in western western in cultivation escaping been has It roots have been known to reach 40 inches deep deep inches 40 reach to known been have roots sharp spines that made it useful as a hedgerow. hedgerow. a as useful it made that spines sharp spikes with long awns. The Medusahead’s fibrous fibrous Medusahead’s The awns. long with spikes white, showy flowers, bright red fruit, and and fruit, red bright flowers, showy white, called culms, have alternating leaves and erect erect and leaves alternating have culms, called landscaping because of its densely clustered clustered densely its of because landscaping up to two feet tall, Medusahead’s thin stems, stems, thin Medusahead’s tall, feet two to up Medusahead in used been has that shrub large to tree small twisting, and is covered in small barbs. Growing Growing barbs. small in covered is and twisting, English hawthorn is a long-lived, deciduous deciduous long-lived, a is hawthorn English grass that can be somewhat spreading and and spreading somewhat be can that grass Crataegus monogyna Crataegus Hawthorn, English Medusahead is a weedy, nonnative, winter annual annual winter nonnative, weedy, a is Medusahead Medusahead, Medusahead, Taeniatherum caput-medusae Taeniatherum New Class C noxious weed: noxious C Class New : weed noxious C Class New Noxious weed list changes for 2016 for changes list weed Noxious County Contacts County Contacts Adams (509) 659-1806 Spokane (509) 477-5777 Adam - District #1 (509) 488-9023 Stevens (509) 684-7590 Asotin (509) 243-2098 Thurston (360) 786-5576 2016 Benton (509) 943-6005 Wahkiakum (360) 795-3852 Benton - District #1 (509) 786-5609 Walla Walla (509) 524-2688 Washington State Chelan (509) 667-6576 Whatcom (360) 778-6234 Clallam (360) 417-2442 Whitman (509) 397-6261 Noxious Weed List Clark (360) 397-6140 Yakima (509) 574-2180 Columbia (509) 382-9760 Cowlitz (360) 577-3117 To learn more about noxious weeds and noxious weed control in Washington State, Douglas (WSU) (509) 745-8531 please contact: Ferry (509) 775-5225 Ext. 1111 Franklin (509) 545-3847 WA State Noxious Weed Control Board Garfield (509) 843-1913 P.O. Box 42560 Grant (509) 754-2011 Ext. 375 Olympia, WA 98504-2560 (360)-725-5764 Grant - District #1 (509) 750-8948 Email: [email protected] Grant - District #3 (509) 785-3621 Website: http://www.nwcb.wa.gov Grays Harbor (360) 482-2265 Or Island (360) 678-7992 Jefferson (360) 379-5610 Ext. 205 WA State Department of Agriculture 21 North First Avenue #103 King (206) 477-9333 Yakima, WA 98902 Kitsap (360) 307-4242 (509) 249-6973 Kittitas (509) 962-7007 USDA-NRCS PLANTS Database / Hitchcock, A.S. (rev. A. Chase). Klickitat (509) 773-5810 1950. Manual of the grasses of the United States. USDA Miscellaneous Lewis (360) 740-1215 Publication No. 200. Washington, DC. Lincoln (509) 725-3646 Mason (360) 427-9670 Ext. 592 Okanogan (509) 422-7165 Medusahead (Taeniatherum caput-medusae) Pacific (360) 875-9425 a new Class C noxious weed for 2016 Pend Oreille (509) 447-2402 Pierce (253) 798-7263 San Juan (360) 376-3499 List arranged alphabetically by: Skagit (360) 336-9430 SCIENTIFIC NAME Skamania (509) 427-3941 Snohomish (425) 388-7548 To help protect the State’s resources and Weed Classes: A, B, and C Noxious Weeds are non-native plants introduced to Washington State that can economy, the Washington State Noxious Class A Weeds: Non-native species whose Weed Control Board adopts a State Noxious distribution in Washington is still limited. be highly destructive, competitive, and Weed List each year (WAC 16-750). This list Preventing new infestations and eradicating difficult to control. These plants invade our groups weeds into three major classes – A, existing infestations are the highest priority. croplands, rangeland, forests, parks, rivers, B, and C – based on the distribution of each Eradication of Class A plants is required by law. lakes, wetlands, and estuaries causing both species and the seriousness of the threat they Class B Weeds: Non-native species presently ecological and economical damage that pose to Washington State. This classification limited to portions of the State. Species are affects us all. Noxious weeds can: system is designed to: designated for control in regions where they are not yet widespread. Preventing new infestations • Lower crop yields • Prevent small infestations from expanding in these areas is a high priority. In regions where • Reduce forage quality by eradicating them when they are first a Class B species is already abundant, control is • Destroy plant and animal habitat detected decided at the local level, with containment as • Displace native plants the primary goal. Please contact your County • Restrict already established weed • Reduce recreational opportunities (e.g., populations to regions of the state where Noxious Weed Control Coordinator to learn which species are designated in your area. fishing, hunting, swimming and hiking) they occur and prevent their movement • Clog waterways to un-infested areas Class C Weeds: Noxious weeds that are typically widespread in WA or are of special interest to • Decrease land values • Allow flexibility of weed control at the the state’s agricultural industry. The Class C • Increase erosion and wildfire risk local level for weeds that are already status allows counties to require control if locally • And some are toxic to humans and widespread. desired. Other counties may choose to provide livestock. education or technical consultation. 2016 Washington State Noxious Weed List Class A Noxious Weeds - Eradication required Class B Noxious Weeds-Continued Class C Noxious Weeds Alliaria petiolata garlic mustard Centaurea jacea knapweed, brown Aegilops cylindrica jointed goatgrass Brachypodium sylvaticum false brome Centaurea x moncktonii knapweed, meadow Ailanthus altissima tree-of-heaven Butomus umbellatus flowering rush Centaurea nigra knapweed, black Alopecurus myosuroides blackgrass Carduus pycnocephalus thistle, Italian Centaurea solstitialis yellow starthistle Artemisia absinthium absinth wormwood Carduus tenuiflorus thistle, slenderflower Centaurea stoebe knapweed, spotted Arum italicum Italian arum Centaurea calcitrapa purple starthistle Chondrilla juncea rush skeletonweed Berberis vulgaris common barberry Centaurea macrocephala knapweed, bighead Conium maculatum poison hemlock Cenchrus longispinus longspine sandbur Centaurea nigrescens knapweed, Vochin Cynoglossum officinale houndstongue Centromadia pungens spikeweed Clematis orientalis oriental clematis Cyperus esculentus yellow nutsedge Cirsium arvense thistle, Canada Crupina vulgaris common crupina Cytisus scoparius Scotch broom Cirsium