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ATTACHMENT D
Invasive Botanical Species List Based on Washington State noxious weed list 2020, with Gifford Pinchot invasive plant species of concern.
Species in blue text are common on the Gifford Pinchot National Forest and are not a priority for control efforts. For this reason, contract surveyors ARE NOT required to survey for, or document, species listed in blue text.
Species in bold are locally common on the Gifford Pinchot National Forest but are a priority for control efforts.
All Class A species and additional species highlighted in yellow are Early-Detection Rapid Response (EDRR) species and are the highest priority for control. These species have unique and specific documentation requirements.
Refer to Guidelines for Documenting Invasive Plant Infestations 2021 (Attachment 12) for invasive species infestation documentation requirements.
Scientific name
| Abutilon theophrasti |
| velvetleaf |
| B |
| Adonis annua |
| blooddrops |
| monitor |
| Aegilops cylindrica |
| goatgrass, jointed |
| C |
| Ailanthus altissima |
| tree of heaven |
| C |
| Alhagi maurorum |
| camelthorn |
| B |
| Alliaria petiolata |
| mustard, garlic |
| A |
| Alopecurus myosuroides |
| blackgrass |
| C |
| Ambrosia tomentosa |
| bursage, skeletonleaf |
| monitor |
| Amorpha fruticosa |
| indigobush |
| B |
| Anchusa arvensis |
| bugloss, annual |
| B |
| Anchusa officinalis |
| bugloss, common |
| B |
| Anthriscus sylvestris |
| chervil, wild |
| B |
| Arctium minus |
| burdock |
| GP concern |
| Artemisia absinthium |
| wormwood, absinth |
| C |
| Arum italicum |
| Italian arum |
| C |
| Berberis vulgaris |
| Common barberry |
| C |
| Berteroa incana |
| alyssum, hoary |
| B |
| Brachypodium sylvaticum |
| slender false brome |
| A |
| Bryonia alba |
| bryony, white |
| B |
| Buddleja davidii |
| butterfly bush |
| B |
| Butomus umbellatus |
| flowering rush |
| A |
| Cabomba caroliniana |
| fanwort |
| B |
| Carduus acanthoides |
| thistle, plumeless |
| B |
| Carduus nutans |
| thistle, musk |
| B |
| Carduus pycnocephalus |
| thistle, Italian |
| A |
| Carduus tenuiflorus |
| thistle, slenderflower |
| A |
| Carthamus lanatus |
| thistle, distaff |
| monitor |
| Cenchrus longispinus |
| sandbur, longspine |
| C |
| Centaurea calcitrapa |
| starthistle, purple |
| A |
| Centaurea diffusa |
| knapweed, diffuse |
| B |
| Centaurea jacea |
| knapweed, brown |
| B |
| Centaurea macrocephala |
| knapweed, bighead |
| A |
| Centaurea melitensis |
| Malta starthistle |
| B |
| Centaurea nigra |
| Knapweed, black |
| B |
| Centaurea nigrescens |
| knapweed, Vochin |
| A |
| Centaurea solstitialis |
| starthistle, yellow |
| B |
| Centaurea stoebe |
| knapweed, spotted |
| B |
| Centaurea tricocephala |
| knapweed, featherhead |
| monitor |
| Centaurea x moncktonii |
| Knapweed, meadow |
| B |
| Centromadia pungens |
| spikeweed |
| C |
| Chondrilla juncea |
| skeletonweed, rush |
| B |
| Cirsium arvense |
| thistle, Canada |
| C |
| Cirsium vulgare |
| thistle, bull |
| C |
| Clematis orientalis |
| clematis, Chinese |
| A |
| Clematis vitalba |
| beard, old man's |
| C |
| Conium maculatum |
| poison-hemlock |
| B |
| Convolvulus arvensis |
| bindweed, field |
| C |
| Cortaderia jubata |
| jubata grass |
| C |
| Cortaderia selloana |
| pampas grass |
| C |
| Cotoneaster spp |
| cotoneaster |
| GP concern |
| Crataegus monogyna |
| English hawthorn |
| C |
| Crataegus sp. |
| hawthorn, nonnative |
| GP concern |
| Crucianella angustifolia |
| crosswort, narrowleaved |
| monitor |
| Crupina vulgaris |
| crupina, common |
| A |
| Cuscuta approximata |
| dodder, smoothseed alfalfa |
| C |
| Cynoglossum officinale |
| houndstongue |
| B |
| Cyperus eragrostis |
| sedge, lovegrass |
| monitor |
| Cyperus esculentus |
| nutsedge, yellow |
| B |
| Cytisus scoparius |
| broom, Scotch |
| B |
| Daphne laureola |
| laurel, spurge |
| B |
| Daucus carota |
| carrot, wild |
| C |
| Dipsacus fullonum |
| teasel, common |
| C |
| Echium vulgare |
| blueweed |
| B |
| Egeria densa |
| elodea, Brazilian |
| B |
| Eichhornia crassipes |
| waterhyacinth |
| monitor |
| Elaeagnus angustifolia |
| Russian olive |
| C |
| Epilobium hirsutum |
| willow-herb, hairy |
| B |
| Euphorbia myrsinites |
| spurge, myrtle |
| B |
| Euphorbia virgata |
| spurge, leafy |
| B |
| Euphorbia oblongata |
| spurge, eggleaf |
| A |
| Ficaria verna |
| celandine, lesser |
| B |
| Foeniculum vulgare (except var. azoricum) |
| fennel, common |
| B |
| Galega officinalis |
| goatsrue |
| A |
| Genista monspessulana |
| French broom |
| A |
| Geranium lucidum |
| shiny geranium |
| B |
| Geranium robertianum |
| herb-Robert |
| B |
| Glyceria maxima |
| sweetgrass, reed |
| A |
| Gypsophila paniculata |
| babysbreath |
| C |
| Hedera helix 'Baltica' |
| English ivy cultivar |
| C |
| Hedera helix 'Pittsburgh' |
| English ivy cultivar |
| C |
| Hedera helix 'Star' |
| English ivy cultivar |
| C |
| Hedera hibernica 'Hibernicia' |
| English ivy cultivar |
| C |
| Helianthus ciliaris |
| blueweed, Texas |
| A |
| Heracleum mantegazzianum |
| hogweed, giant |
| A |
| Hibiscus trionum |
| mallow, venice |
| monitor |
| Hieracium aurantiacum |
| hawkweed, orange |
| B |
| Hieracium, subgenus Hieracium |
| Hawkweeds: All nonnative species and hybrids of the wall subgenus |
| B |
| Hieracium, subgenus Pilosella |
| Hawkweeds: All nonnative species and hybrids of the meadow subgenus |
| B |
| Hieracium saboudum |
| hawkweed, European |
| A |
| Hydrilla verticillata |
| hydrilla |
| A |
| Hydrocharis morsus-ranae |
| frogs-bit, Eurasian |
| monitor |
| Hyoscyamus niger |
| henbane, black |
| C |
| Hypericum perforatum |
| St. Johnswort, common |
| C |
| Hypochaeris radicata |
| catsear, common |
| C |
| Ilex aquifolium |
| holly |
| GP concern |
| Impatiens capensis |
| spotted jewelweed |
| C |
| Impatiens glandulifera |
| helmet, policeman's |
| B |
| Impatiens parviflora |
| small-flowered jewelweed |
| A |
| Inula helenium |
| Inula |
| monitor |
| Iris pseudacorus |
| iris, yellow flag |
| C |
| Isatis tinctoria |
| woad, dyers |
| A |
| Jacobaea vulgaris |
| Tansy ragwort |
| B |
| Lamiastrum galeobdolon |
| archangel, yellow |
| B |
| Lathyrus latifolius |
| everlasting pea |
| GP concern |
| Lathyrus sylvestris |
| narrow-leaved everlasting pea |
| GP concern |
| Lepidium appelianum |
| hairy whitetop |
| C |
| Lepidium draba |
| hoary cress |
| C |
| Lepidium latifolium |
| pepperweed, perennial |
| B |
| Leucanthemum vulgare |
| daisy, oxeye |
| C |
| Limnobium laevigatum |
| South American spongeplant |
| A |
| Linaria dalmatica ssp. dalmatica |
| toadflax, Dalmatian |
| B |
| Linaria vulgaris |
| toadflax, yellow |
| C |
| Ludwigia hexapetala |
| primrose, water |
| B |
| Ludwigia peploides |
| primrose-willow, floating |
| A |
| Lysimachia vulgaris |
| loosestrife, garden |
| B |
| Lythrum salicaria |
| loosestrife, purple |
| B |
| Lythrum virgatum |
| loosestrife, wand |
| B |
| Matricaria perforata |
| mayweed, scentless |
| C |
| Mirabilis nyctaginea |
| four o'clock, wild |
| A |
| Myriophyllum aquaticum |
| parrotfeather |
| B |
| Myriophyllum heterophyllum |
| milfoil, variable-leaf |
| A |
| Myriophyllum spicatum |
| watermilfoil, Eurasian |
| B |
| Myriophyllum spicatum x M. sibiricum |
| watermilfoil, Eurasian hybrid |
| C |
| Nymphaea odorata |
| water lily, fragrant |
| C |
| Nymphoides peltata |
| floating heart, yellow |
| B |
| Onopordum acanthium |
| thistle, Scotch |
| B |
| Persicaria wallichii |
| knotweed, Himalayan |
| B |
| Phalaris arundinacea |
| canarygrass, reed |
| C |
| Phragmites australis |
| reed, common, nonnative genotypes |
| B |
| Picris hieracioides |
| oxtongue, hawkweed |
| B |
| Polygonum albertii |
| vine, silverlace |
| monitor |
| Polygonum x bohemicum |
| knotweed, Bohemian |
| B |
| Polygonum cuspidatum |
| knotweed, Japanese |
| B |
| Polygonum sachalinense |
| knotweed, giant |
| B |
| Potamogeton crispus |
| pondweed, curly-leaf |
| C |
| Potentilla argentea |
| cinquefoil, silvery |
| monitor |
| Potentilla recta |
| cinquefoil, sulfur |
| B |
| Proboscidea louisianica |
| unicorn-plant |
| monitor |
| Pueraria montana var. lobata |
| kudzu |
| A |
| Rhaponticum repens |
| knapweed, Russian |
| B |
| Rorippa austriaca |
| fieldcress, Austrian |
| C |
| Rorippa nasturtium-aquaticum |
| watercress |
| monitor |
| Rubus armeniacus |
| Himalayan blackberry |
| C |
| Rubus laciniatus |
| cut-leaf blackberry |
| C |
| Rorippa sylvestris |
| fieldcress, creeping |
| monitor |
| Saccharum ravennae |
| Ravenna grass |
| B |
| Sagittaria graminea |
| arrowhead, grass-leaved |
| B |
| Salvia aethiopis |
| sage, Mediterranean |
| A |
| Salvia pratensis |
| clary, meadow |
| A |
| Salvia sclarea |
| sage, clary |
| A |
| Schoenoplectus mucronatus |
| ricefield bulrush |
| A |
| Secale cereale |
| rye, cereal |
| C |
| Senecio vulgaris |
| groundsel, common |
| C |
| Silene csereii |
| catchfly, Balkan |
| monitor |
| Silene latifolia ssp. alba |
| cockle, white |
| C |
| Silybum marianum |
| thistle, milk |
| A |
| Solanum elaeagnifolium |
| nightshade, silverleaf |
| A |
| Solanum rostratum |
| buffalobur |
| C |
| Soliva sessilis |
| lawnweed |
| C |
| Sonchus arvensis |
| sowthistle, perennial |
| C |
| Sorghum halepense |
| johnsongrass |
| A |
| Spartina alterniflora |
| cordgrass, smooth |
| A |
| Spartina anglica |
| cordgrass, common |
| A |
| Spartina densiflora |
| cordgrass, dense flower |
| A |
| Spartina patens |
| cordgrass, salt meadow |
| A |
| Spartium junceum |
| broom, Spanish |
| A |
| Sphaerophysa salsula |
| swainsonpea |
| C |
| Taeniatherum caput-medusae |
| medusahead |
| C |
| Tamarix ramosissima |
| saltcedar |
| B |
| Tanacetum vulgare |
| tansy, common |
| C |
| Taraxacum officinale |
| dandelion |
| GP concern |
| Thymelaea passerina |
| flax, spurge |
| B |
| Torilis arvensis |
| hedgeparsley |
| GP concern |
| Tribulus terrestris |
| puncturevine |
| B |
| Tussilago farfara |
| European coltsfoot |
| B |
| Typha spp. |
| Non-native species of cattail |
| C |
| Utricularia inflata |
| bladderwort, swollen |
| monitor |
| Ventenata dubia |
| ventenata |
| C |
| Verbena bonariensis |
| verbena, tall |
| monitor |
| Vinca major |
| periwinkle |
| GP concern |
| Vinca minor |
| periwinkle |
| GP concern |
| Xanthium spinosum |
| cocklebur, spiny |
| C |
| Zostera japonica |
| Japanese eelgrass |
| C |
| Zygophyllum fabago |
| bean-caper, Syrian |
| A |
Department of Agriculture Forest Service