= Poisonous to animal and/or
human
= Noxious or Invasive in
Oregon
= Crop weed in Oregon
= Federal Noxious weed in
Oregon
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
T'Ing Li
Descurainia sophia Syn Sisymbrium sophia
Tall amaranth Amaranthus rudis, syn Amaranthus
tamariscinus Nutt., syn Acnida
tamariscina (Nutt.) A.W.Wood
Tall buckwheat
Eriogonum elatum
Tall Buttercup or
Tall crawfoot Ranunculus acris
Tall Hawksbeard Crepis
acuminata
Tall hedge-mustard
Sisymbrium altissimum
Tall mallow Zinnia spp.
Tall Mountain Shootingstar Dodecatheon jeffreyi
Tall tumblemustard
Sisymbrium altissimum
Tall woolly buckwheat Eriogonum
elatum
Tamarix Tamarix parviflora
Tansymustard Descurainia sophia
Tapertip
Hawksbeard Crepis acuminata
Tear-thumb Polygonum
amphibium
Teasel Dipsacus fullonum L. syn Dipsacus fullonum
L. ssp. sylvestris, Dipsacus sylvestris
Texas
thistle Solanum rostratum
Threadstem Fireweed Epilobium minutum
Ti
Shen - Ranunculus
sceleratus L.
Tiger Lily Lilium tigrinum
Timberline phacelia Phacelia
hastata
Toadrush Juncus bufonius
Tolguacha,
Toluaca Datura wrightii Syn D. innoxia, D. meteloides
Toore Descurainia
sophia Syn Sisymbrium sophia
Tor-grass Brachypodium pinnatum
syn: Bromus pinnatus
Tre Marana
Solanum dulcamara
Tree Mallow Lavatera assurgentiflora
Trèfle fraise or Trébol
fresero Trifolium fragiferum syn Trifolium
bonannii, Trifolium fragiferum subsp. bonannii, Trifolium neglectum
Triticale Triticale spp.
Troscart
maritime Triglochin maritima
Tzar of Plants Lycium europaeum syn Lycium
intricatum
Tuberous water-horehound
Lycopus uniflorus
Tule Scirpus californicus
Tumble
knapweed Acosta diffusa
Tumble mustard
or Tumbling
mustard Sisymbrium
altissimum
Tumbleweed
or Tumbling Thistle Salsola tragus L. syn
S. iberica, S. australis, S. kali, S. kali L. ssp. ruthenica, S. kali
L. ssp. tragus L., S. kali L. ssp. tenuifolia, S. pestifer, S. ruthenica
Twisted Moss Tortula ruraliformis
Synonym: Syntrichia ruraliformis
Vandpest, Vanlig Vattenpest,
Vasspest, Vattenpest, Vesihain, Vesirutto,
or
Vodomor Kanadský
Elodea canadensis syn Anacharis canadensis, Planch. var. planchonii,
Elodea brandegeae, Elodea ioensis, Elodea linearis, Elodea planchonii, Philotria
canadensis, Philotria linearis
Vanlig Svalting Alisma plantago-aquatica
Varied-leaf phacelia Phacelia
heterophylla
Varileaf Phacelia Phacelia heterophylla
Vassgro Alisma plantago-aquatica
Vegetable oyster - Tragopogon porrifolius
Venus' Basin Dipsacus fullonum L. syn Dipsacus fullonum L. ssp.
sylvestris, Dipsacus sylvestris
Vejbred-Skeblad Alisma plantago-aquatica
Velar Sophienkraut Descurainia sophia
Syn Sisymbrium sophia
Wallflower
phoenicaulis Phoenicaulis
cheiranthoides
Water Babies Breath Alisma plantago-aquatica
Water groundsel Senecio hydrophilus
Water heart's ease Polygonum
amphibium
Water hemp Amaranthus rudis, syn Amaranthus tamariscinus Nutt., Acnida tamariscina Nutt.
Water ragwort Senecio hydrophilus
Water knotweed or
Water smartweed Polygonum amphibium
Water Thistle Dipsacus fullonum L. syn Dipsacus fullonum L. ssp.
sylvestris, Dipsacus sylvestris
Water Thyme or Waterweed Elodea canadensis syn Anacharis
canadensis, Planch. var. planchonii, Elodea brandegeae, Elodea ioensis, Elodea linearis,
Elodea planchonii, Philotria canadensis, Philotria linearis
Water-pepper Polygonum hydropiper syn Polygonum
fastigiatoramosum, Polygonum maximowiczii, Persicaria fastigiatoramosa,
Persicaria hydropiper L.
Waterweegbree Alisma plantago-aquatica
Wavyleaf Thistle Cirsium undulatum
Weevil Prairie Dandelion Nothocalais troximoides syn
Microseris troximoides
Wegwarte Cichorium intybus L. syn
Cichorium intybus var. foliosum, Cichorium intybus var. sativum
Western borax-weed Nitrophila occidentalis
Western burnet Sanguisorba occidentalis
Western Clematis Clematis ligustifolia
Western
Common Chokecherry Prunus spp.
Western couchgrass Pascopyrum smithii syn Agropyron smithii
Western goat's beard - Tragopogon dubius, syn T. pratensis, T. dubius
subsp. campestris, T. major
Western Goldenrod Euthamia occidentalis formerly
Solidago occidentalis
Western Gromwell Lithospermum ruderale
Western Hawk's-Beard Crepis occidentalis
Western Jimsonveed Datura wrightii Syn D. innoxia,
D. meteloides
Western marsh cudweed Gnaphalium palustre syn Filaginella
palustris Nutt.
Western Miterwort, Western
Nitrophila Nitrophila occidentalis
Western Mugwort Artemisia ludoviciana
Western Peony Paeonia brownii
Western Salsify - Tragopogon dubius, syn T. pratensis, T. dubius
subsp. campestris, T. major
Western Wakerobin Trillium ovatum ssp ovatum
Western wheatgrass Pascopyrum smithii syn Agropyron smithii
Western Yellow Cress Rorippa
curvisiliqua var. curvisiliqua
White campion Lychnis alba Synonyms: Silene alba, Silene
pratensis
White Cedar Thuja occidentalis
White Cockle Lychnis alba Synonyms: Silene alba, Silene
pratensis
White Forget-me-not Cryptantha Cinerea
White goosefoot Chenopodium album
White-leafed phacelia Phacelia hastata
White Locoweed Oxytropis sericea Nutt.
White Moth Mullein Verbascum blattaria
White Plectritis Plectritis macrocera
White robin Lychnis alba Synonyms: Silene alba, Silene
pratensis
White shamrock Trifolium repens
White Sweet Clover Melilotus alba Medic.
White Top Erigeron Annuus
White Goosefoot Chenopodium album
White knapweed Acosta
diffusa
White Sage, White Sagewort, White Sagebrush Artemisia
ludoviciana
White Yarrow Achillea millefolium
White-top or White-weed Lepidium draba
L. syn Cardaria draba
Whitetop Lepidium chalapensis syn. Cardaria chalapensis
Whitewater crowfoot Ranunculus aquatilus
Wickerstem Buckwheat Eriogonum vimineum
Wild Amaranth Amaranthus lividus
Wild blackberry Rubus fruticosis
Wild buckwheat Eriogonum strictum var. proliferum
Wild Chamomile Chamomilla suaveolens syn Matricaria
matricarioides, Matricaria suaveolens, Matricaria discoidea
Wild
Cherries Prunus spp.
Wild Chicory Cichorium intybus L.
Wild Geranium Erodium cicutarium
Wild Geranium Malva neglecta
Wild Hollyhock
Sidalcea malvaeflora
Wild hyacinth Dichelostemma capitatum ssp. pauciflorum
Wild Hyacinth Triteleia grandiflora var. grandiflora syn
Brodiaea douglasii , Brodiaea
grandiflora
Wild lettuce Lactuca serriola syn Latuca scariola
Wild mint Mentha arvensis
Wild Morning Glory Convolvulus
arvensis
Wild opium Lactuca serriola syn Latuca
scariola
Wild oysterplant - Tragopogon dubius, syn T. pratensis, T. dubius
subsp. campestris, T. major
Wild Spinach Chenopodium album
Wild Succory Cichorium intybus L. syn
Cichorium intybus var. foliosum, Cichorium intybus var. sativum
Wild Sweet William Saponaria Officinalis
Wild
Teasel Dipsacus fullonum L. syn Dipsacus fullonum L. ssp. sylvestris, Dipsacus
sylvestris
Wilde Cichorei Cichorium intybus L. syn
Cichorium intybus var. foliosum, Cichorium intybus var. sativum
Willow-Herb Epilobium ciliatum syn
Epilobium glandulosum or Epilobium watsonii
Willow-herb Epilobium minutum
Winter-purslane Claytonia perfoliata
Wire-grass Polygonum arenastrum
Witch Grass Panicum capillare
Witloof Cichorium intybus L. syn
Cichorium intybus var. foliosum, Cichorium intybus var. sativum
Witte Winterpostelein Claytonia perfoliata
Wokas Nuphar lutea
Wolfberry Lycium barbarum Syn Lycium megistocarpum,
Lycium lanceolatum, Lycium halimifolium, Lycium europaeum, Lycium vulgare
Woodland Star Paeonia brownii
Woody Nightshade Solanum dulcamara
Woolen-breeches Hydrophyllum capitatum var. alpinum
Wooly Mullein Verbascum thappus
Wurzelzichorie Cichorium intybus L. syn
Cichorium intybus var. foliosum, Cichorium intybus var. sativum
Wyoming wheatgrass Pascopyrum smithii syn Agropyron smithii
Yaban Yasemini Solanum dulcamara
Yalanci Kediotu Nepeta cataria
Yanagi-Tade Polygonum hydropiper syn Polygonum
fastigiatoramosum, Polygonum maximowiczii, Persicaria fastigiatoramosa,
Persicaria hydropiper L.
Yarrow Achillea millefolium
Yellow bell Fritillaria pudica
Yellow cane Phragmites australis
Yellow centaury or Yellow
cockspur Centaurea solstitialis syn Leucantha solstitialis
Yellow daisy, Yellow Spiney Daisy Machaeranthera gracilis syn Aplopappus
gracilis, Dieteria gracilis
Yellow fritillary Fritillaria pudica
Yellow goatsbeard or Yellow Salsify -
Tragopogon dubius, syn T. pratensis, T. dubius subsp. campestris, T.
major
Yellow gowan Leontodon taraxacum L. syn: Taraxacum officinale Webber.
Yellow Iris Iris Pseudacorus
Yellow Monkeyflower Mimulus Guttatus
Yellow Pond-lily Nuphar lutea
Yellow salsify Tragopogon dubius Scop.
Yellow Star-thistle Centaurea
solstitialis syn Leucantha solstitialis
Yellow Sweet Clover Melilotus officinalis (L.) Pallas
Yellow Toadflax Linaria vulgaris
Yellow Wood Sorrel Oxalis Europea
Yonja
Medicago sativa
Zabieniec
babka wodna Alisma plantago-aquatica
Zacate salado Distichlis spicata (L.) Greene
Zaghlil - Ranunculus sceleratus L.
Zarza or Zarzamora Rubus fruticosis
Zebrina Malva sylvestri v. Zebrina
Zikorifa Cichorium intybus L. syn
Cichorium intybus var. foliosum, Cichorium intybus var. sativum
Zinnia Zinnia spp.
Zomercentaurie Centaurea
solstitialis syn Leucantha solstitialis
Zurukamara Solanum dulcamara