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An Assessment of Exotic Plant Species of Rocky Mountain National Park

GIF-Final assessment of russian thistle, diffuse knapweed, canada thistle, and dandelion

Prepared by

Chris R. Rutledge
Dr. Terry McLendon
Department of Rangeland Ecosystem Science, Colorado State University

This resource is based on the following source:

Rutledge, Chris R., and Dr. Terry McLendon. 1996. An Assessment of Exotic Plant Species of Rocky Mountain National Park. Department of Rangeland Ecosystem Science, Colorado State University. 97pp.

This resource should be cited as:

Rutledge, Chris R., and Dr. Terry McLendon. 1996. An Assessment of Exotic Plant Species of Rocky Mountain National Park. Department of Rangeland Ecosystem Science, Colorado State University. Jamestown, ND: Northern Prairie Wildlife Research Center Online. http://www.npwrc.usgs.gov/resource/plants/explant/index.htm (Version 15DEC98).

Introduction
Approach
Methods
Results
Table 2 - Summary of Screening Assessment Results
Table 3 - Summary of Final Assessment Results

Abstracts for Exotic Plant Species of Concern - Final Assessment
- Agropyron repens -- Quackgrass, couchgrass
- Bromus inermis -- Smooth Brome
- Bromus tectorum -- Downy brome, downy chess, cheatgrass
- Carduus nutans -- Musk thistle, plumeless thistle
- Centaurea diffusa -- Tumble knapweed, diffuse knapweed
- Centaurea maculosa -- Spotted knapweed
- Chrysanthemem leucanthemem -- Oxe-eye daisy, white daisy
- Cirsium arvense -- Canada thistle, creeping thistle
- Cirsium vulgare -- Bull thistle, spear thistle
- Convolvulus arvensis -- Field bindweed, morning glory
- Dactylis glomerata -- Orchard grass, cocksfoot
- Euphorbia esula -- Leafy spurge
- Gypsophilia paniculata -- Babysbreath
- Hypericum perforatum -- Klamath weed, St. John's wort, goatweed
- Linaria dalmatica ssp. dalmatica -- Dalmatian toadflax
- Linaria vulgaris -- Butter and eggs, yellow toadflax, wild snapdragon
- Lythrum salicaria -- Purple loosestrife, purple lythrum
- Melilotus alba and M. officinalis -- White sweetclover, Honey clover and Yellow sweetclover
- Phalaris arundinaceae -- Reed canary grass
- Poa pratensis -- Kentucky bluegrass
- Sonchus arvensis -- Meadow sowthistle, perennial sowthistle, creeping sowthistle

Literature Review Summary Information for Remaining Exotic Species
- Agropyron cristatum -- Crested wheatgrass
- Erodium cicutarium -- Redstem filaree
- Polygonum arenastrum -- Knotweed
- Agropyron intermedium -- Intermediate wheatgrass
- Erodium cicutarium -- Redstem filaree
- Polygonum convolvulus -- Black bindweed
- Agrostis stolonifera -- Redtop
- Erysimum cheiranthoides -- Treacle mustard
- Potentilla norvegica -- Norway cinquiefoil
- Alopecuris pratensis -- Meadow foxtail grass
- Festuca ovina -- Sheep fescue
- Psathyrostachys juncea -- Russian wildrye
- Alyssum alyssoides -- Yellow alyssum
- Festuca pratensis -- Meadow fescue
- Rheum rhubarbarum -- Rhubarb
- Amaranthus retroflexus -- Redroot pigweed
- Hieracium aurantiacum -- Orange hawkweek
- Rumex acetosella -- Sheep sorrel
- Ambrosia tomentosa -- Skeleton Leaf Bursage
- Lactuca serriola -- Prickly letttuce
- Rumex crispix -- Curly dock
- Arabis glabra -- Tower Mustard
- Lappula occidentalis var. occidentalis -- Beggar's tick
- Salsola iberica -- Russian thistle
- Asparagus officinalis -- Asparagus
- Lepidium campestre -- Field Cress
- Sisymbrium altissimum -- Jill Hill Mustard
- Barbarea vulgaris -- Bitter Wintercress
- Lepidium densiflorum -- Peppergrass
- Sisymbrium officinale -- Common hedge mustard
- Berteroa incana -- Hoary alyssum
- Lepidium perfoliatum -- Clasping pepperweed
- Solanum triflorum -- Cut leafed nightshade
- Bromus japonicus -- Japanese brome
- Lolium perenne -- Perennial ryegrass
- Spergularia rubra -- Red sandspurry
- Camelina microcarpa -- Smallseed falseflax
- Lychnis alba -- White campion
- Taraxacum officinale -- Dandelion
- Capsella bursa-pastoris -- Common shepherd's purse
- Matricaria matricaroides --Pineapple weed
- Thlapsi arvense -- Field pennycress
- Carum carvi -- Wild caraway
- Matricaria perforata -- Wild chamomile
- Tragopogon dubius -- Western salsify
- Cerastium vulgatum -- Mouseear chickweed
- Medicago lupulina -- Black medic
- Trifolium hybridum -- Aliske clover
- Chenopodium album -- Lambsquarters
- Mentha spicata -- Spearmint
- Trifolium pratense -- Red clover
- Chenopodium capitum -- Strawberry blite
- Onobrychis viciaefolia -- Sanfion
- Trifolium repens -- White clover
- Chenopodium glaucum -- Oak-leafed goosefoot
- Phleum pratense -- Timothy
- Triticum aestivum -- Wheat
- Conium maculatum -- Poison hemlock
- Plantago major -- Broadleaf
- Verbascum thapsus -- Woody mullein
- Conyza canadensis -- Horseweed
- Poa annua -- Annual bluegrass
- Verbena-bracteata -- Prostrate vervain
- Cynoglossum officinale -- Houndstongue
- Poa bulbosa -- Bulbous bluegrass
- Descurainia sophia -- Flixweed
- Poa compressa -- Canada bluegrass

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An Assessment of Exotic Plant Species of Rocky Mountain National Park

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