Agriculture Reference
In-Depth Information
Table 1. Noxious exotic plant species occurring in Idaho, Oregon and Washington east of the Cascade
Range [101]. Noxious weeds are species specified by law as being especially undesirable, trouble-
some, or difficult to control; precise definitions vary according to state laws and legal interpretations.
Latin name
ID OR WA
Latin name
ID OR WA
Abutilon theophrasti
Hyoscyamus niger
Aegilops cylindrica
Hypericum perforatum
Agropyron repens
Hypochaeris radicata
Anchusa officinalis
Iris pseudacorus
Anthriscus sylvestris
Isatis tinctoria
Artemisia absinthium
Kochia scoparia
Cardaria draba
Lepidium latifolium
Cardaria pubescens
Linaria dalmatica
Carduus acanthoides
Linaria vulgaris
Carduus nutans
Lythrum salicaria
Carduus pycnocephalus
Matricaria maritima
Centaurea diffusa
Myriophyllum spicatum
Centaurea jacea
Nardus stricta
Centaurea biebersteinii
Onopordum acanthium
Centaurea pratensis
Panicum miliaceum
Centaurea repens
Peganum harmala
Centaurea solstitialis
Phalaris arundinacea
Centaurea triumfettii
Polygonum cuspidatum
Chondrilla juncea
Polygonum sachalinense
Chrysanthemum
Potentilla recta
leucanthemum
Cirsium arvense
Rorippa sylvestris
Cirsium vulgare
Rubus discolor
Conium maculatum
Salvia aethiopis
Convolvulus arvensis
Salvia sclarea
Crupina vulgaris
Secale cereale
Cynoglossum officinale
Senecio jacobaea
Cyperus esculentus
Sonchus arvensis
Cytisus scoparius
Sorghum halepense
Daucus carota
Sphaerophysa salsula
Euphorbia esula
Taeniatherum caput - medusae
Euphorbia myrsinites
Tamarix spp .
Gypsophila paniculata
Tanacetum vulgare
Halogeton glomeratus
Tribulus terrestris
Hieracium aurantiacum
Xanthium spinosum
Hieracium pratense
grams can, in turn, be helpful to further identify research needs. Research to
inform regional management of invasive plant species requires explicit consid-
eration of scale, while empirical study may be concentrated on species biology,
population demography and/or habitat level risk assessment (Fig. 2). This paper
discusses the three components necessary to develop a regional approach for
invasive plant research and management: 1) an understanding of the steps for
plant invasions to occur, 2) consideration of relevant biological and geographic
scales, and 3) interaction with natural resource managers. We then present an
example research framework to inform scientists and managers about the poten-
tial of this regional research approach using the invasive plant Potentilla recta .
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