Upper Willamette CWMA Profile
What is your CWMA name?
Upper Willamette CWMA
What is your contact information?
Nancy Sawtelle, Lead Contact
Box 10226
Eugene OR 97440
Nancy_Sawtelle@blm.gov
541.683.6111
What is your CWMA mission?
The Upper Willamette CWMA exists to create and support collaborative weed management
among land managers and owners within its area. It promotes weed education/outreach, weed
inventory/prevention, and control activities.
Please describe the geographic boundaries of your CWMA.
The Upper Willamette Cooperative Weed Management Area includes 6,024 square miles of
land which is the entirety of Linn and Benton Counties and the eastern portion of Lane County
defined by the Upper Willamette SWCD boundary which roughly follows the crest of the Coast
Range. It includes the communities of Horton, Triangle Lake and Lorane which are technically
in the Siuslaw watershed region but are socio-economically more similar to the Willamette
Valley than to the communities along the coast. Within this combined area, the topography
varies from rugged steep mountains of the eastern slopes of the Oregon Coast Range and the
western slope of the Cascades to the valley floors and floodplains of the Willamette Valley and
its tributaries. Watersheds within the CWMA include: North Santiam, South Santiam,
McKenzie, Coast Fork Willamette, Middle Fork Willamette, Upper Siuslaw, Upper Lake Creek,
Alsea, Jackson-Frazier, Upper Luckiamute, Mary’s, Long Tom, and Calapooia. Some of these
watersheds are not completely contained in the Upper Willamette CWMA.
List the cooperators involved in your CWMA. (Use organization name only)
Current CWMA participants include: Benton Soil and Water Conservation District; Bonneville
Power Administration; City of Eugene; Willamette National Forest; Linn Soil and Water
Conservation District; East Lane Soil and Water Conservation District; Calapooia Watershed
Council; McKenzie Watershed Council; Oregon Department of Transportation; Oregon
Department of Agriculture; United States Army Corps of Engineers; Bureau of Land
Management - Salem District; Bureau of Land Management - Eugene District; Cascade Pacific
Resource Conservation and Development, Inc.; Long Tom Watershed Council; Benton County
Department of Public Works; Middle Fork Willamette Watershed Council; Marys River
Watershed Council; Lane County Public Works; Mohawk Watershed Partnership; Willamalane
Park and Recreation District; Oregon Department of Fish and Wildlife; Benton County Natural
Areas and Parks; McKenzie River Trust; Umpqua National Forest; OSU College of Forestry;
Integrated Resource Management; Oregon Department of Forestry; Oregon Parks and
Recreation – Southern Willamette Management Unit
List the weed species of concern for your CWMA.
Appendix 1: Weeds of concern
WEEDS OF CONCERN: Upper Willamette Cooperative Weed Management Area 2007
1
UWCWMA status: 1=New invaders; 2=locally established; 3=widely established; W=watch list
2
UWCWMA “dirty two dozen”: average rank of time and money spent by partners responding to 2006
questionnaire. The top five species are highlighted.
COMMON NAME
SPECIES
List1
Rank
ODA
20062
List 1: New Invaders in the Upper Willamette
Garlic mustard
Portuguese broom
French broom
Alliara petiolata
Cytisus striatus
Genista monspessulana (= Cytisus
monspessulanus)
Shining cranesbill
Geranium lucidum
Giant hogweed
Heracleum mantegazzianum
Hawkweed complex
Hieracium aurantiacum, H. floribundum
Water primrose willow
Ludwigia peploides
Yellow floating heart
Nymphoides peltata
Sulfur cinquefoil
Potentilla recta
Spanish broom
Spartium junceum
Gorse
Ulex europaeus
List 2: Locally Established in the Upper Willamette
1
1
1
1
1
1
1
1
1
1
1
15
22
24
False-brome
Brachypodium sylvaticum
Distaff thistle
Carthamus lanatus
Diffuse knapweed
Centaurea diffusa
Spotted knapweed
Centaurea maculosa
Meadow knapweed
Centaurea pratensis
Common fennel
Foeniculum vulgare
Yellow flag iris
Iris pseudacorus
Sweet pea
Lathyrus latifolius
Ox-eye daisy
Leucanthemum vulgare
Purple loosestrife
Lythrum salicaria
Harding grass
Phalaris aquatica
Japanese, giant, hybrid
Polygonum cuspidatum*, sachalinense*, X
knotweeds
bohemicum
Himalayan knotweed
Polygonum polystachyum
List 3: Widely Established in the Upper Willamette
2
2
2
2
2
2
2
2
2
2
2
2
1
13
10
20
5
B
A
B
B
B
NL
B
NL
NL
B, T
NL
*B, T
2
8
B
Bentgrass (escaped, non-ag
pops)
Butterfly bush
Canada thistle
Bull thistle
English/single seed hawthorn
Scotch broom
Herb Robert
English and Irish ivy
Agrostis capillaris, stolonifera, alba, tenuis,
3
11
NL
Buddleja davidii
Cirsium arvense
Cirsium vulgare
Crataegus monogyna
Cytisus scoparius
Geranium robertianum
Hedera helix*, hibernica
3
3
3
3
3
3
3
12
B
B
B
NL
B
NL
*B
16
19
21
17
18
9
3
7
6
B, T
B
B
NL
A, T
A, T
NL
A
B
B
B, T
WEEDS OF CONCERN: Upper Willamette Cooperative Weed Management Area 2007
1
UWCWMA status: 1=New invaders; 2=locally established; 3=widely established; W=watch list
2
UWCWMA “dirty two dozen”: average rank of time and money spent by partners responding to 2006
questionnaire. The top five species are highlighted.
COMMON NAME
SPECIES
List1
Rank
ODA
20062
English holly
Ilex aquifolium
3
NL
4
Reed canary grass
Phalaris arundinacea
3
NL
Laurel
Prunus laurocerasus
3
NL
Feral pear
Pyrus communis
3
NL
Multiflora rose
Rosa multiflora
3
14
NL
2
Armenian & Evergreen
Rubus armeniacus (=R. discolor), R.
3
B
blackberries
laciniatus
Watch List
Tree of Brooklyn
Common bugloss
Plumeless thistles
Starthistle, yellow*
Old man's beard
Jubata grass
Spurge laurel
Patterson’s curse
Weeping lovegrass
Creeping velvet grass
Hydrilla
Policeman’s helmet
Thin-leaved pea
Bristly oxtongue
Fig buttercup
Creepy buttercup
Purple oyster plant
Ailanthus altissima
Anchusa officinalis
Carduus tenuiflora & C. pycnocephala
Centaurea solstitialis
Clematis vitalba
Cortaderia jubata
Daphne laureola
Echium plantagineum
Eragrostis curvula
Holcus mollis
Hydrilla verticillata
Impatiens glandulifera
Lathyrus sylvestris
Picris echioides
Ranunculus ficaria
Ranunculus repens
Tragopogon porrifolius
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
23
WEEDS FOR DISCUSSION (Weeds proposed during 2006 management
ranking process, but lacking a proponent at list revision meetings)
Wild oats
Avena fatua
Cheatgrass and other annual
Bromus spp.
bromes
Teasel
Dipsacus sativum (=D. sylvestris?)
Annual bluegrass
Poa annua
Black locust
Robinia pseudoacacia
Puncturevine
Tribulus terrestris
What is the highest priority species in your area?
False brome
What makes the structure of your CWMA successful?
Multiple partners from a wide range of local, county, state and federal organizations allow for
NL
B, T
NL
B, T
B
B
NL
A, T
NL
NL
A
B
NL
NL
NL
NL
NL
sharing to technical information, maps, outreach materials, etc
What are some of your most successful on the ground accomplishments?
Various watershed-wide knotweed and false brome projects involving multiple agencies.
Describe your most valuable outreach/education tool.
Field visits and tours!
What would you say is your CWMA's largest obstacle in the way of achieving your mission?
Lack of long term funding prevents ongoing monitoring and follow up needed to successfully
see a project through.
List your highest priority on the ground projects and why they are high priority. (for instance T&E
species, sensitive habitat protection...something like that)
Japanese knotweed and false brome due to their propensity to form monocultures; this is
severely detrimental to fish and wildlife habitat.