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Garden loosestrife (Lysimachia vulgaris)

Gallery:

Mature Garden loosestrife infestation

Garden loosestrife inflorescence

Garden loosestrife flower

Distinctive orange-margined sepals of the Garden loosestrife

Garden loosestrife infestation

Garden loosestrife being controlled by staff from the Oregon Dept. of Agriculture

Common names:

Garden loosestrife, garden yellow loosestrife,

Scientific Name:

Lysimachia vulgaris

Description:

Garden loosestrife is a tall upright rhizomatous noxious weed that grows up to 5 feet in height. It is characterized by terminal panicles of bright yellow 5-petaled flowers. Leaves are opposite to whorled, nearly sessile and lanceolate 7-12 cm in length. The stems and leaves are soft and hairy. Flowered are ringed by distinctive orange-margined green sepals. Underground rhizomes can spread to lengths up to 15 feet. Plants reproduce from both rhizomes and seeds.

Life cycle:

Perennial

Height of mature plants

3 to 6 feet

Flower color:

Yellow 5- petaled flower, that lack reddish or black streaks or dots

Bloom time:

Typically blooms during July and August.

Look-a-likes:

The closely related Yellow loosestrife (Lysimachia punctata) is a less aggressive garden ornamental, with lower flowers from emerging from the leaf axils, and the yellow flowers lack the orange-margined sepals, characteristic of the noxious garden loosestrife.

Habitat:

Garden loosestrife is found escaping in wetlands and along streams and river. It is also likely to be found in garden setting. This species is known to occur in only one location in Oregon.

Impacts:

Garden loosestrife invades wetland and riparian areas, where it displaces desirable native vegetation. Once established it can spread rapidly, and has been known to displace very hearty plants such as cattails. Invasion by garden loosestrife disrupts habitat for fish and wildlife, and can limit recreation opportunities in highly invaded sites.

Noxious Weed Listing:

Origin:

This species is native to Europe.

Present in Clackamas County:

Links:

Oregon Noxious Weed Profile

USDA Plants

King County Noxious Weed Program

Invasive Plant Atlas of New England

Working Together

By Sam Leininger on October 5, 2016 in News, PARTNERSHIPS

The old adage “many hands make light work” could not be truer when it comes to weed management. The WeedWise Program routinely works with a number of partnering entities and organizations across our region to combat invasive weeds. This include local, state, and federal agencies as well local non-profits and watershed councils. Our partnerships also […]

WEEDS

What are weeds?

There are a whole host of terms to describe weeds. The term “weeds” itself can refer to any plant that occurs in an undesirable location. Terms like “non-native“, “exotic“, “alien” or “non-indigenous” refer to plants that occur in areas where they historically did not occur. These terms make no distinction whether plants are desirable or undesirable. The term “invasive” refers to a plant or animal that exhibits aggressive growth and displace other species. Other terms like “noxious” or “nuisance” refer to plants that have special designation by the state or by a municipality the prohibits their sale or cultivation. With this broad diversity of terms, it is no wonder that many people find themselves confused and wondering how to make sense of it all.

At the WeedWise program, we hope to clarify this issue by focusing on plants we refer to as “invasive weeds”. Invasive weeds are plants that live outside their historic geographical range, and whose aggressive growth habit has a detrimental effect on our social, economic, or ecologic resources. The three key components of invasive weeds are:

They did not historically occur in our area but have been brought in either intentionally or unintentionally through human action.
They exhibit aggressive growth that displaces native or desirable vegetation and will continue to spread unless actively controlled.
They have a negative impact on our community.

These three characteristics clarify invasive weeds as those plants that pose the greatest threat to our community. By focusing on invasive weeds the WeedWise program is working to maximize its limited resources to realize the greatest benefit to Clackamas County.

Defining our priorities

All invasive weeds pose a major threat to the residents of Clackamas County, but some of these pests can be more damaging than others. In addition, the costs to control these invasive weeds greatly exceed the resources available for their management. As a result, the WeedWise program has prioritized its efforts to target invasive weeds that pose the greatest risk, have the greatest negative impact, and may still be limited enough in their distribution to allow for eradication or containment in Clackamas County. For these “priority” invasive weeds, the WeedWise program may have resources available to assistance Clackamas County landowners to control or manage these weeds. For more common invasive weeds, the WeedWise program offers technical information and consultations to improve your efforts and to make your management practices more effective.

WeedWise Classifications

Priority: These weeds are the highest priority and are actively being targeted for eradication by the WeedWise Program. Landowners are encouraged to notify the WeedWise program for assistance with these weeds and to actively control them on their property.

Containment: These weeds are a priority for management. In some areas, these weeds are so widespread that treatments are not feasible in all locations. For these weeds, infestations will be targeted for eradication when they occur outside of established containment areas. For infestations within containment areas, landowners are encouraged to contact the WeedWise program for technical assistance in developing plans to improve the management of these invasive weeds.

Maintenance: These weeds are damaging and widespread. The WeedWise Program encourages control by landowners and can assist with the development of a plan to control these weeds.

No designation: Some weeds listed below have no designation. This is because the listed weed is either not a state-listed noxious weed or because it is not known to occur in or near Clackamas County.

Clackamas Weed List

Common Name	Scientific Name	WeedWise Classification	Oregon Classification	Washington Classification	4-County CWMA	Columbia Gorge CWMA
Velvetleaf	Abutilon theophrasti	priority	B	B	B	B
Barbed Goatgrass	Aegilops triuncialis	priority	A,T	not listed	A	W
Tree of Heaven	Ailanthus altissima	maintenance	B	C	B	C
Garlic mustard	Alliaria petiolata	containment	B,T	A	B	A
False indigo bush	Amorpha fruticosa	priority	B	B	not listed	B
Wild chervil	Anthriscus sylvestris	maintenance	not listed	B	not listed	B
Italian arum	Arum italicum	maintenance	not listed	C	B	B
False brome	Brachypodium sylvaticum	containment	B	A	B	A
Butterfly bush	Buddleja davidii (Buddleja varabilis)	maintenance	B	B	B	B
Flowering rush	Butomus umbellatus	priority	A,T	A	W	A
Welted thistle	Carduus crispus	priority	A,T	not listed	not listed	not listed
Drooping sedge	Carex pendula	containment	W	not listed	W	B
Meadow knapweed	Centaurea × moncktonii (C. pratensis)	maintenance	B	B	B	B
Spotted knapweed	Centaurea stoebe (C. maculosa)	maintenance	B,T	B	B	B
Rush skeletonweed	Chondrilla juncea	priority	B, T	B	D	B
Canada thistle	Cirsium arvense	maintenance	B	C	C	C
Bull thistle	Cirsium vulgare	maintenance	B	C	D	C
Old man's beard	Clematis vitalba	maintenance	B	C	B	C
Poison hemlock	Conium maculatum	maintenance	B	B	B	B
English hawthorn	Crataegus monogyna	maintenance	B	C	C	C
Yellow nutsedge	Cyperus esculentus	maintenance	B	B	B	B
Houndstongue	Cynoglossum officinale	priority	B	B	D	B
Scotch broom	Cytisus scoparius	maintenance	B	B	C	B
Wild carrot	Daucus carota	maintenance	not listed	C	C	C
Spurge laurel	Daphne laureola	priority	B	B	B	B
Common teasel	Dipsacus fullonum	maintenance	not listed	C	C	C
South American waterweed	Egeria densa	maintenance	B	B	C	B
Myrtle spurge	Euphorbia myrsinites	maintenance	B	B	E	B
Oblong spurge	Euphorbia oblongata	priority	A,T	A	A	A
Goatsrue	Galega officinalis	priority	A, T	A	A	A
Shining geranium	Geranium lucidum	maintenance	B	B	B	A
Herb robert	Geranium robertianum	maintenance	B	B	C	B
English ivy	Hedera helix	maintenance	B	C	C	B
Irish ivy	Hedera hibernica	maintenance	B	C	C	B
Giant hogweed	Heracleum mantegazzianum	priority	A, T	A	A	A
Orange hawkweed	Hieracium aurantiacum	priority	A,T	B	A	A
Meadow hawkweed	Hieracium caespitosum	priority	B,T	B	A	B
St. John's wort	Hypericum perforatum	maintenance	B	C	C	C
Hairy cat's ear	Hypochaeris radicata	maintenance	not listed	C	C	C
Jewelweed	Impatiens capensis	maintenance	W	C	C	W
Policeman's helmet	Impatiens glandulifera	containment	B	B	B	B
Yellow flag iris	Iris pseudacorus	maintenance	B	C	B	B
Yellow archangel	Lamium galeobdolon	maintenance	B	B	B	B
Large-flowered primrose willow	Ludwigia grandiflora	containment	B, T	not listed	not listed	B
Primrose willow	Ludwigia hexapetala	containment	B, T	B	not listed	B
Water primrose	Ludwigia peploides ssp. montevidensis	containment	B, T	A	A	A
Purple loosestrife	Lythrum salicaria	containment	B	B	B	B
Fragrant water lily	Nymphaea odorata		not listed	C	D	C
Small broomrape	Orobanche minor	maintenance	B	not listed	D	A
African rue	Peganum harmala	priority	A,T	not listed	A	W
Japanese butterbur	Petasites japonica		not listed	not listed	W	B
American pokeweed	Phytolacca americana		W	not listed	B	A
Ribbongrass	Phalaris arundinacea var. picta	maintenance	B,T	C	not listed	C
Reed canarygrass	Phalaris arundinacea	maintenance	W	C	not listed	C
Bohemian knotweed	Fallopia × bohemica ( Polygonum × bohemicum )	containment	B	B	C	B
Japanese knotweed	Fallopia japonica ( Polygonum cuspidatum )	containment	B	B	B	B
Giant knotweed	Fallopia sachalinensis ( Polygonum sachalinensis )	containment	B	B	B	B
Curly-leaf pondweed	Potamogeton crispus	maintenance	not listed	C	C	C
Sulphur cinquefoil	Potentilla recta	priority	B	B	A	B
Kudzu	Pueraria montana	priority	A,T	A	A	A
Lesser celandine	Ranunculus ficaria	maintenance	B	B	B	B
Armenian (Himalayan) blackberry	Rubus armeniacus (R. bifrons, R. procerus, R. discolor)	maintenance	B	C	C	C
Evergreen blackberry	Rubus laciniatus	maintenance	not listed	C	C	C
Tansy ragwort	Senecio jacobaea	maintenance	B	B	B	B
Common groundsel	Senecio vulgaris	maintenance	not listed	C	not listed	C
Blessed milk thistle	Silybum marianum	priority	B	A	A	A
Perennial sowthistle	Sonchus arvensis ssp. arvensis	maintenance	not listed	C	D	C
Common tansy	Tanacetum vulgare	maintenance	not listed	C	C	C
Gorse	Ulex europaeus	priority	B,T	B	A	A
Garden yellow loosestrife	Lysimachia vulgaris	priority	A,T	B	A	W
Spiny cocklebur	Xanthium spinosum	priority	B	C	D	C
Syrian bean-caper	Zygophyllum fabago	priority	A	A	A	A
Biddy-biddy	Acaena novae-zelandiae	priority	B	not listed	not listed	W
Russian Knapweed	Acroptilon repens	priority	B	B	A	B
Pheasant eye	Adonis aestivalis	priority	B	not listed	not listed	not listed
Jointed goatgrass	Aegilops cylindrica	priority	B	C	not listed	C
Ovate Goatgrass	Aegilops ovata	priority	A	not listed	A	W
Camelthorn	Alhagi pseudalhagi	priority	A	B	A	A
Blackgrass	Alopecurus myosuroides		not listed	C	A	W
Yellow tuft	Alyssum corsicum	priority	A,T	not listed	A	W
Yellow tuft	Alyssum murale	priority	A,T	not listed	A	W
Ragweed	Ambrosia artemisiifolia	priority	B	not listed	D	B
Annual bugloss	Anchusa arvensis		not listed	B	not listed	B
Common bugloss	Anchusa officinalis	priority	B,T	B	A	B
Absinth wormwood	Artemisia absinthium		not listed	C	not listed	C
South African capeweed	Artotheca calendula		W	not listed	not listed	W
Giant reed	Arundo donax	priority	B	not listed	not listed	A
Common barberry	Berberis vulgaris		not listed	C	not listed	W
Hoary allysum	Berteroa incana	priority	A,T	B	A	B
White bryonia	Bryonia alba	priority	A	B	A	A
Fanwort	Cabomba caroliniana		not listed	B	not listed	W
Plumeless thistle	Carduus acanthoides	priority	A,T	B	A	A
Turkish thistle	Carduus cinereus	priority	A	not listed	not listed	not listed
Musk thistle	Carduus nutans	priority	B	B	E	B
Italian thistle	Carduus pycnocephalus	priority	B	A	D	A
Slender-flowered thistle	Carduus tenuiflorus	priority	B	A	D	A
Smooth distaff thistle	Carthamus baeticus	priority	A	not listed	A	W
Woolly distaff thistle	Carthamus lanatus	priority	A,T	not listed	A	W
Whitestem distaff thistle	Carthamus leucocaulos		W	not listed	not listed	W
Wild safflower	Carthamus oxyacantha		W	not listed	not listed	W
Longspine sandbur	Cenchrus longispinus		not listed	C	not listed	C
Purple starthistle	Centaurea calcitrapa	priority	A,T	A	A	A
Diffuse knapweed	Centaurea diffusa	maintenance	B	B	B	B
Iberian starthistle	Centaurea iberica	priority	A,T	not listed	A	A
Brown knapweed	Centaurea jacea	maintenance	not listed	B	F	B
Big-headed knapweed	Centaurea macrocephala	maintenance	W	A	not listed	A
Malta starthistle	Centaurea melitensis	maintenance	not listed	B	not listed	not listed
Black knapweed	Centaurea nigra	maintenance	not listed	B	not listed	B
Vochin knapweed	Centaurea nigrescens	maintenance	not listed	A	not listed	A
Yellow starthistle	Centaurea solstitialis	priority	B	B	A	B
Feather-headed knapweed	Centaurea trichocephala		W	not listed	not listed	W
Squarrose knapweed	Centaurea virgata	priority	A,T	not listed	not listed	A
Oriental clematis	Clematis orientalis		not listed	A	not listed	A
Field bindweed	Convolvulus arvensis	maintenance	B,T	C	C	C
Jubata grass	Cortaderia jubata	priority	B	C	W	B
Pampass grass	Cortaderia selloana		W	C	W	C
Common crupina	Crupina vulgaris	maintenance	B	A	not listed	W
Smoothseed alfalfa dodder	Cuscuta approximata	maintenance	B	C	not listed	C
Bigseed dodder	Cuscuta indecora	maintenance	B	not listed	not listed	notlisted
Japanese dodder	Cuscuta japonica	priority	A	not listed	A	W
Five-angled dodder	Cuscuta pentagona	maintenance	B	not listed	not listed	notlisted
Purple nutsedge	Cyperus rotundus	priority	A	not listed	A	A
Portuguese broom	Cytisus striatus	priority	B,T	not listed	W	W
Cape ivy	Delairea odorata	priority	A	not listed	A	W
Cutleaf teasel	Dipsacus laciniatus	priority	B	not listed	not listed	W
Tree echium	Echium pininana		W	not listed	not listed	W
Paterson's curse	Echium plantagineum	priority	A,T	not listed	A	W
Viper bugloss	Echium vulgare		W	B	not listed	B
Water hyacinth	Eichhornia crassipes		W	not listed	not listed	not listed
Russian olive	Elaeagnus angustifolia		not listed	C	not listed	C
Hairy willow-herb	Epilobium hirsutum		not listed	B	not listed	B
Spanish heath	Erica lusitanica	maintenance	B	not listed	W	W
Toothed spurge	Euphorbia dentata		W	not listed	not listed	W
Leafy spurge	Euphorbia esula	priority	B, T	B	B	A
Common fennel	Foeniculum vulgare		not listed	B	C	B
French broom	Genista monspessulana	priority	B	A	W	A
Reed sweetgrass	Glyceria maxima		not listed	A	not listed	A
Babysbreath	Gypsophila paniculata		not listed	C	not listed	C
Halogeton	Halogeton glomeratus	priority	B	not listed	not listed	W
Texas blueweed	Helianthus ciliaris		not listed	A	not listed	A
Spikeweed	Hemizonia pungens	priority	B	C	not listed	C
Yellow hawkweed	Hieracium × floribundum	priority	A,T	B	A	A
Polar hawkweed	Hieracium atratum		not listed	B	not listed	W
Whiplash hawkweed	Hieracium flagellare		not listed	B	not listed	W
Queen-devil hawkweed	Hieracium glomeratum		not listed	B	not listed	W
Common hawkweed	Hieracium lachenalii		not listed	B	not listed	B
Pale hawkweed	Hieracium lactucella		not listed	B	not listed	W
Smooth hawkweed	Hieracium laevigatum		not listed	B	not listed	W
Spotted hawkweed	Hieracium maculatum		not listed	B	not listed	W
Wall hawkweed	Hieracium murorum		not listed	B	W	W
Mouse-ear hawkweed	Hieracium pilosella	priority	A,T	B	A	A
King-devil hawkweed	Hieracium piloselloides	priority	A,T	B	A	A
European hawkweed	Hieracium sabaudum		not listed	B	not listed	W
Hydrilla	Hydrilla verticillata	priority	A	A	W	A
Common frogbit	Hydrocharis morsus-ranae	priority	A	not listed	A	W
Black henbane	Hyoscyamus niger		not listed	C	not listed	C
English holly	Ilex aquifolium	maintenance	W	W	C	not listed
Small-flowered jewelweed	Impatiens parviflora	priority	not listed	A	A	A
Dyers woad	Isatis tinctoria	priority	B	A	not listed	A
Kochia	Kochia scoparia	priority	B	B	not listed	B
Perennial peavine	Lathyrus latifolius	maintenance	B	not listed	C	C
Lens-podded whitetop	Lepidium chalepense	priority	B	not listed	A	B
Hoary cress	Lepidium draba	priority	B	C	A	B
Perennial pepperweed	Lepidium latifolium	priority	B,T	B	A	B
Hairy whitetop	Lepidium pubescens	priority	B	C	not listed	C
Lepyrodiclis	Lepyrodiclis holosteoides		not listed	C	not listed	W
Oxeye daisy	Leucanthemum vulgare	maintenance	not listed	C	C	C
West Indian spongeplant	Limnobium laevigatum	priority	A	A	A	W
Dalmatian toadflax	Linaria dalmatica	priority	B, T	B	B	B
Yellow toadflax	Linaria vulgaris	maintenance	B	C	B	C
Rose campion	Lychnus coronaria		W	not listed	not listed	W
Wand loosestrife	Lythrum virgatum		not listed	B	not listed	W
Scentless mayweed	Matricaria perforata		not listed	C	not listed	C
Wild four o'clock	Mirabilis nyctaginea		not listed	A	not listed	W
Variable-leaf milfoil	Myriophyllum heterophyllum		not listed	A	not listed	A
Eurasian watermilfoil	Myriophyllum spicatum	maintenance	B	B	C	B
Hybrid watermilfoil	Myriophyllum spicatum × M. sibiricum		not listed	C	not listed	not listed
Parrots feather	Myrophyllum aquaticum	maintenance	B	B	B	B
Matgrass	Nardus stricta	priority	A,T	not listed	A	W
Yellow floating heart	Nymphoides peltata	priority	A, T	B	A	A
Scotch thistle	Onopordum acanthium	priority	B	B	A	B
Taurian thistle	Onopordum tauricum	priority	A,T	not listed	A	W
Mile-a-minute weed	Persicaria perfoliata		W	not listed	not listed	W
Common reed	Phragmites australis ssp. australis	priority	B	B	A	B
Hawkweed oxtongue	Picris hieracioides		not listed	B	not listed	B
Himalayan knotweed	Polygonum polystachyum	priority	B	B	not listed	B
Austrian fieldcress	Rorippa austriaca		not listed	C	not listed	C
Creeping yellow cress	Rorippa sylvestris	maintenance	B	not listed	not listed	A
Sweet briar rose	Rosa rubiginosa ( R.eglanteria )		W	not listed	not listed	W
Ravennagrass	Saccharum ravennae	priority	A	A	A	A
Grass-leaved arrowhead	Sagittaria graminea		not listed	B	not listed	W
Delta arrowhead	Sagittaria platyphylla	priority	A	not listed	A	not listed
Mediterranean sage	Salvia aethiopis	maintenance	B	A	not listed	A
Meadow clary	Salvia pratensis		not listed	A	not listed	W
Clary sage	Salvia sclarea		W	A	not listed	W
Ricefield bulrush	Schoenoplectus mucronatus	priority	W	A	D	A
Cereal rye	Secale cereale		not listed	C	not listed	C
White cockle	Silene latifolia ssp. alba		not listed	C	not listed	C
Silverleaf nightshade	Solanum elaeagnifolium	priority	A	A	A	A
Buffalobur	Solanum rostratum	priority	B	C	D	C
Sticky nightshade	Solanum sisymbriifolium		W	not listed	not listed	W
Field Burrweed	Soliva sessilis		not listed	C	not listed	W
Johnsongrass	Sorghum halepense	priority	B	A	E	A
Smooth cordgrass	Spartina alterniflora	priority	A, T	A	A	W
Common cordgrass	Spartina anglica	priority	A,T	A	A	W
Dense-flowered cordgrass	Spartina densiflora	priority	A,T	A	A	W
Saltmeadow cordgrass	Spartina patens	priority	A,T	A	A	W
Spanish broom	Spartium junceum	priority	B	A	F	A
Swainsonpea	Sphaerophysa salsula	priority	B	C	not listed	C
Water soldiers	Stratiotes aloides	priority	A	not listed	A	not listed
Medusahead rye	Taeniatherum caput-medusae	priority	B	not listed	C	C
Saltcedar	Tamarix ramosissima	priority	B,T	B	W	B
Spurge flax	Thymelaea passerina		not listed	B	not listed	W
European water chestnut	Trapa natans	priority	A	not listed	A	A
Puncturevine	Tribulus terrestris	priority	B	B	C	B
Coltsfoot	Tussilago farfara	priority	A	B	A	A
Narrowleaf cattail	Typha angustifolia		not listed	C	not listed	C
Southern cattail	Typha domingensis		not listed	C	not listed	W
Miniature cattail	Typha minima		not listed	C	not listed	W
White cattail	Typha x glauca		not listed	C	not listed	W
North Africa grass	Ventenata dubia ( V. avenacea )	maintenance	B	C	not listed	C
Japanese eelgrass	Zostera japonica		W	C	not listed	W

PROJECTS

The WeedWise Program is dedicated to helping protect Clackamas County from the ongoing threat of invasive weeds. These projects are often based around the prevention or management or priority invasive weeds. We currently working on projects across the county, but focus largely on priority invasive weeds, priority sites, or on partnership projects.

Priority Weed Control Projects

Orange hawkweed control is an example of a priority weed control project underway at several locations in Clackamas County.

The priority weed control program focuses on the Early Detection and Rapid Response (EDRR) of new or rare invasive weeds where the goal is either eradication or containment. These projects allow us to focus our resources for maximum impact. Priority weed control projects typically occur at the landscape level and impact multiple landowners either public or private. These project focus on the control and eradication of a priority weed species. Some examples of our current priority weed control projects include the active management of:

Garlic mustard (Alliaria petiolata)
False brome (Brachypodium sylvaticum)
Spurge laurel (Daphne laureola)
Oblong spurge (Euphorbia oblongata)
Japanese, Giant, and Bohemian knotweed (Fallopia japonica, F. sachalinensis, and F. x bohemica)
Goatsrue (Galega officinalis)
Orange hawkweed (Hieracium aurantiacum)
Giant hogweed (Heracleum mantegazzianum)
Policeman’s helmet (Impatiens glandulifera)
Blessed Milk Thistle (Silybum marianum)
Puncturevine (Tribulus terrestris)
Gorse (Ulex europaeus)

The priority weed control projects are one of our highest priorities and target all known infestations across the county or within a given management area.

Priority Site Projects

The Bull Run Gate Project was initiated to protect the city of Portland’s municipal watershed from encroaching birds dispersed invasive weeds

Priority site projects are projects that are designed to protect areas of exceptional quality or of unique ecological, economic, or cultural importance. Some examples of projects that the WeedWise program is currently working on or have spearheaded in the past include:

Barton Area Priority weeds project
Bull Run Gate weed control project
Coral Creek weed control project
Molalla River confluence project
Newell Creek restoration project
Salmon River priority weed control project
South Creek-Abernethy project
Lolo Pass priority weed control project

The priority site project areas are typically local or regional significance and are designed to protect or buffer these areas from the encroachment or spread of invasive weeds. The goals of these projects is typically focused on exclusion and maintenance of natural areas within the project areas.

Partnership Projects

Knotweed control efforts undertaken in conjunction with the Clackamas River Invasive Species Partnership, focus area project.

Partnership project are those projects that are typically undertaken in conjunction with local and regional partners. These projects are often complex and have diverse interests. These projects involve working in cooperation with partner organizations to implement projects across broad geographic areas or across jurisdictional boundaries. Examples of partnership projects include:

The Backyard Habitat Certification Program Clackamas County Expansion
The Clackamas River Invasive Species Partnership Upper Clackamas Surveys
The Clackamas River Invasive Species Partnership Focus Area weed control project
The Portland Metro Garlic mustard working group
The Mt Hood National Forest Working Group
The Sandy Basin Vegetation Restoration Coalition priority weed control

Learn More

To learn more about our projects please check the project drop downs in the navigation menu above, or contact us about information pertaining to a particular project mentioned.

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