printable copy - Washington State Noxious Weed Control Board
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<strong>Washington</strong> <strong>State</strong> <strong>Noxious</strong> <strong>Weed</strong> <strong>Control</strong> <strong>Board</strong>-- MONITOR LIST<br />
Common Name Scientific Name Sponsor<br />
Bachelor’s button Centaurea cyanus Julie Sanderson<br />
Bladderwort, swollen Utricularia inflata Jenifer Parsons<br />
Bladder senna Colutea arborescens Marty Hudson<br />
Blooddrops Adonis annua Nelle Murray<br />
Bursage, skeletonleaf Ambrosia tomentosa <strong>State</strong> <strong>Weed</strong> <strong>Board</strong><br />
Catchfly, Balkan Silene csereii Sharon Sorby<br />
Cattail, lesser Typha angustifolia Jenifer Parsons<br />
Celandine, lesser Ficaria verna Laurel Baldwin<br />
Cherry laurel<br />
Prunus laurocerasus<br />
Seattle Urban Nature<br />
Cinquefoil, silvery<br />
Potentilla argentea<br />
Janet Nelson<br />
Crack willow species Salix x rubens, Salix alba, Salix<br />
fragilis<br />
Joel Freudenthal<br />
Crosswort, narrowleaved Crucianella angustifolia <strong>State</strong> <strong>Weed</strong> <strong>Board</strong><br />
Dyer’s greenwood Genista tinctoria Marty Hudson<br />
English holly<br />
European mountain ash<br />
Fieldcress, creeping<br />
Ilex aquifolium<br />
Sorbus aucuparia<br />
Rorippa sylvestris<br />
Seattle Urban Nature<br />
Seattle Urban Nature<br />
P. Stevenson<br />
Frogs-bit, Eurasian Hydrocharis morsus-ranae Alison Halpern<br />
Giant Reed Arundo donax Steven Link<br />
Hawkweed, tall Hieracium piloselloides King County NWCB<br />
Inula Inula helenium Sue Winterowd<br />
Italian arum Arum italicum Cyndi Soliz<br />
Jewelweed, spotted Impatiens capensis Jefferson County<br />
Knapweed, featherhead Centaurea tricocephala Dick Jacobson<br />
Mallow, venice Hibiscus trionum Bridget Simon<br />
Moleplant Euphorbia lathyris Angelica Velazquez<br />
Multiflora rose Rosa multiflora David Giblin<br />
Pampas grass Cortaderia spp. Rick Johnson<br />
Perennial cornflower Centaurea montana Julie Sanderson<br />
Periwinkle Vinca minor Angelica Velazquez<br />
Periwinkle, large Vinca major Angelica Velazquez<br />
Sedge, lovegrass Cyperus eragrostis Jim Comrada<br />
Teasel, common Dipsacus fullonum Bill Rogers<br />
Thistle, distaff Carthamus lanatus Bill Wamsley<br />
Unicorn-plant Proboscidea louisianica Sharon Sorby<br />
Verbena, tall Verbena bonariensis Sarah Reichard<br />
Vine, silverlace Polygonum albertii King County<br />
Watercress Rorippa nasturtium-aquaticum Cathy Lucero<br />
Waterhyacinth Eichhornia crassipes Kathy Hamel<br />
Purpose: The purpose of the “monitor list” is to gather more information on suspect weeds, as well as monitor for<br />
occurrence or spread. Information collected may be used to justify future inclusion on the state noxious weed list.<br />
There is no legal or regulatory aspect to this list (WAC 16-750-025).<br />
Reasons for inclusion:<br />
1. Reason to believe this species is invasive or poses a potential threat to <strong>Washington</strong>.<br />
2. Additional information is needed on distribution, abundance or biology.
<strong>Washington</strong> <strong>State</strong> <strong>Noxious</strong> <strong>Weed</strong> <strong>Control</strong> <strong>Board</strong>-- MONITOR LIST<br />
3. The species was once present in <strong>Washington</strong> and on the <strong>State</strong> <strong>Noxious</strong> <strong>Weed</strong> List. It is now being monitored for<br />
reoccurrence.<br />
4. Need to verify existence (site investigation), verify identification and/or obtain voucher specimen.<br />
5. It exists in an adjacent state or province or occurs on an adjacent state or province's noxious weed list and is not<br />
known to occur in <strong>Washington</strong>.<br />
Native species of <strong>Washington</strong> will not be included on the monitor list. Each weed on the monitor list will be included by<br />
vote of the noxious weed committee and will require a sponsor for monitoring. For more information on these species,<br />
please contact the sponsor or the <strong>State</strong> <strong>Weed</strong> <strong>Board</strong> 360.902.2082.
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