1. Field Bindweed

    Convolvulus arvensis Field Bindweed - An herbaceous perennial with extensive rhizomes that help it creep through fields and over plants.Leaves: Arrowhead-shaped leaves that alternate along the stem. Leaves have two lobes at the base.Flowers: Flowers bloom from April-October. Flowers are bell or funnel-shaped and are about 1 inch across. They range from white-pink and have bracts (scales) where the flower stem meets the plant stem.Habitat: It grows anywhere from full sun to full shade and is drought tolerant. Found in ravines, greenbelts, forested parks, farmlands, driveways, flower gardens, and ornamental bordersWeed Classification: CWhy is it a Noxious Weed?Once established it …


    Weed Control - Oct. 6, 2022, 9:33 a.m.

  2. Hawkweeds

    Hieracium spp. Orange Hawkweed Mouseear Hawkweed Hawkweeds - Most hawkweed species are hairy and have a milky latex in their stems.Leaves: Most species will have basal leaves. Stem leaves can vary by subgenus. Leaves can be smooth, toothed, or lobed.Flowers: Blooms typically May - Sep. Most non-native species will have yellow ray flowers, but some species can have orange flowers as well. Flowers looks similar to dandelion flowers.Habitat: Typically found in fields, meadows, pastures, forest clearings, and disturbed areas like roadsides and abandoned farmland.Weed Classification: B DesignateWhy is it a Noxious Weed?The plants are invasive, spread easily, and negatively impact …


    Weed Control - Sept. 29, 2022, 9:47 a.m.

  3. Rush Skeletonweed

    Chondrilla juncea Rush Skeletonweed - A perennial that grows 1-5 feet tall. It has a long slender taproot that can grow 7 feet in length.Leaves: Basal leaves are lobed and slightly curved towards the leaf base. The stems have very few leaves that are smaller and have smooth edges.Flowers: Flowers bloom from July-September. Flowers consist of many yellow ray flowers and are either single or clustered. They are about 1/2 inch in diameter with green bracts (scales) underneath.Habitat: Can be found in pastures, rangeland, cropland, roadsides, open and disturbed areas.Weed Classification: B DesignateWhy is it a Noxious Weed?Rush Skeletonweed can …


    Weed Control - Oct. 5, 2022, 3:36 p.m.

  4. Eurasian Watermilfoil

    Myriophyllum spicatum Eurasian Watermilfoil- a fully submerged escaped ornamental perennial that readily alters aquatic ecosystems by multiplying quickly and blocking sun with dense "floating" mats.Leaves: Feather-like leaves occur in whorls of 4 on a red stem. Each leaf can have 12+ leaflet pairs.Flowers: Tiny pink-reddish flowers appear as terminal spikes. Male and female flowers appear on the same plant.Habitat: Highly adaptable to any freshwater body including streams, rivers, ponds, lakes and ditches. Has been found as deep as 10 meters.Classification: B SelectThis aquatic weed is confirmed to be present in Carlisle lake, Riffe & Mayfield lakes (and the downstream portions …


    Weed Control - Sept. 26, 2022, 11:01 a.m.

  5. Report An Infestation

    Report Weeds Here (<-- Click link)Citizens can report noxious weeds infestations utilizing the link above.If you are uncertain about ID, please take several photos of leaves, flowers, branches and entire plant, and send to weeds@lewiscountywa.gov or consult the state board online resource found here: Washington State Noxious Weed Control Board.


    Weed Control - April 6, 2023, 11:32 a.m.

  6. Tree of Heaven

    Ailanthus altissima Tree of Heaven - A deciduous tree growing up to 60 feet tall. Plant parts may be identified by a distinctive peanut butter/popcorn smell.Leaves: Leaves are compound and alternate, and each leaf has anywhere from 10-27 leaflets usually. Leaflets are mostly smooth-edged, except for a few rounded teeth and a visibly large gland on the underside, towards the base of the leaf.Flowers: Flowers bloom from May-July. Trees will either have male or female flower clusters at the tips of the stems with the male flowers being larger. Flowers are light green-yellow in color.Habitat: Commonly found near forest edges, …


    Weed Control - Oct. 6, 2022, 9:32 a.m.

  7. False Brome

    Brachypodium sylvaticum False Brome - A perennial, loosely tufted grass with upright stems.Leaves: Leaf sheathes have spreading hairs (can be hairless). Leaf blades are flat and arched up to 14 inches long. Leave blades are covered with long soft hairs.Flowers: Flowers bloom from April-June. Flowers are grouped in upright to nodding spikes. Flowers vary in hairiness and typically don't have stalks connecting them to main stem.Habitat: Grows in a variety of habitats including: forests, forest edges, woodlands, riparian areas, prairies, and roadsides.Weed Classification: AWhy is it a Noxious Weed?It spreads very fast and outcompetes native flora. Can form dense monocultures …


    Weed Control - Sept. 29, 2022, 10:46 a.m.

  8. Garlic Mustard

    Alliaria petiolata Garlic Mustard - A biennial to short-lived perennial plant. Plant smells of garlic and can grow to around 3 feet in height.Leaves: Basal leaves have rounded tips and are kidney shaped. Upper leaves are alternate and triangular in shape. Both types of leaves have leaf stems and are coarsely toothed. New leaves smell the most of garlic.Flowers: Flowers bloom from April-June. Flowers have 4 petals, 4 sepals, and 6 stamens. Petals are white and about twice as long as the sepals.Habitat: In Washington it grows in forested understory areas like urban parks, roadsides, trails, railroad tracks, streambanks, fields, …


    Weed Control - Sept. 29, 2022, 10:57 a.m.

  9. Quarterly Weed Board Meeting

    Call To OrderAdoption of MinutesIntroduction of GuestsComments from the PublicCoordinators Report Budget Review Program Updates 2025 Field Season Challenges Actions Requested from the Weed Board Special TopicsOld BusinessNew Business Listing of Common HollyComments from Individual Members of the BoardDate of the Next Board Meeting: August 6th, 2025 @ 1:00 PM Followed by: November 12th, 2025Adjournment


    Weed Control - May 6, 2025, 8:50 a.m.

  10. Other Yard Waste Options

    Leaf Exchange Events scheduled in NovemberThe WSU Lewis County Master Recycler Composter (MRC) volunteers will host two Leaf Exchange events this fall: Nov. 1 & Nov. 22, at the Floral Park Sustainability Project at the corner of South Tower Avenue and Floral Street in Centralia. Hours will be from 10 a.m. to 4 p.m.Bring your leaves in plastic lawn and leaf bags or garbage bags, and drop them off with volunteers during the event. The Leaf Exchange is being offered for free, but the MRC volunteers, who are putting on the program in partnership with the Lewis County Solid Waste …


    Solid Waste - Jan. 23, 2021, 9:22 a.m.