1. Purple Loosestrife

    Lythrum salicaria Purple Loosestrife – Erect squarish stems, up to 8 feet tall, Leaves: 1 ½ to 4 inches long, lance-shaped and lack petioles, usually opposite and rotated 90 degrees from the previous node or whorled in sets of 3.Flowers: spikes of magenta flowers 4 – 16 inches long, flowers from July to October.Habitat: Found in wetlands and streams in the Centralia/Chehalis area as well as Stearns Creek and Mineral Lake in Lewis County.Weed Classification: B designateWhy Is It a Noxious Weed?Purple loosestrife is a vigorous competitor and can crowd out other vegetation including native species. It can quickly dominate …


    Weed Control - Sept. 12, 2022, 11:28 a.m.

  2. GIS Mapping

    GIS stands for Geographic Information System, a computer application that permits geographic and location-related data to be electronically stored and spatially referenced. A GIS allows for digital mapping of land features such as roads, rivers, drainage basins, soil types, hydrology, topography, land use and urban and district boundaries. The GIS is used to obtain and map information about the county to be used in management decisions, county planning, and operations.The GIS Division is responsible for providing geographic services and map products to the Public Works Department and other County offices. Service to outside agencies, organizations and individuals can be performed …


    Public Works - Jan. 10, 2011, 9:38 a.m.

  3. Common fennel

    Foeniculum vulgare Common Fennel - A large perennial herb that grows to be about 6' tall, smells strongly of licorice, and spreads via seeds and pieces of the root crown.Leaves: Dark green or bronze feather-like, deeply lobed and somewhat spindly, the leaves are completely hairless and attachment points (petioles) are fleshy with a wide base.Flowers: In bloom from May to September, the small yellow flowers form an umbrella shaped cluster (umbel) and resemble those of poison hemlock and wild chervil.Habitat: Can establish in just about any habitat from roadsides, to prairies, to coastal bluffs, to wetland areas.Weed Classification: B DesignateWhy …


    Weed Control - Sept. 29, 2022, 9:46 a.m.

  4. Yellowflag Iris

    Iris pseudacorus Yellowflag Iris - A perennial, herbaceous, aquatic plant, growing 2-3 feet in height.Leaves: Basal leaves are sword shaped and larger than the leaves found higher up the stem.Flowers: There can be few or many flowers near the tip of the stems. Flowers are white-dark yellow with purple markings. There are 3 petals and 3 sepals.Habitat: Most commonly found growing in very shallow water or mud. It can also grow along lake shores and slow-moving rivers. It tolerates a variety of conditions.Weed Classification: C SelectWhy is it a Noxious weed?It is an ornamental that has become a nuisance in …


    Weed Control - Oct. 6, 2022, 11:46 a.m.

  5. Bull Thistle

    Cirsium vulgare Bull Thistle - Biennial, herbaceous plant growing about 3-7 feet tall, with one stem.Leaves: Alternate, coarsely lobed leaves. Each lobe has a spiked tip. Top of leaves is rough with small spines, while the bottom has wooly hairs.Flowers: Flowers bloom from July-September. 1.5-2 inches across and are generally purple/pink (rarely white).Habitat: Primarily found in disturbed areas like pastures, roadsides, ditch banks, hayfields, prairies, and logged mountain areas.Weed Classification: CWhy is it a Noxious Weed?Bull Thistle tends to outcompete native vegetation and desired grazing forage.Bull thistle is commonly found in Lewis County. If you need control recommendations, please see …


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

  6. Spurge Laurel

    Daphne laureola Spurge Laurel - An evergreen shrub that gets to be around 1.5 to 5 feet tall. Plants can either be upright or arched at the base before spreading upwards.Leaves: Leaves alternate and are more prominent towards the top of the shoots. They are dark green and shiny on the top with lighter undersides. Leaves are oval in shape and about 0.8-5.1 inches long.Flowers: Flowers bloom from March through June. Small, green and yellow flowers grow at the base of the leaves and are fragrant.Habitat: Commonly found amongst the forest understory. Spurge Laurel prefers partial sun.Weed Classification: B DesignateWhy …


    Weed Control - Sept. 29, 2022, 9:49 a.m.

  7. 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.

  8. Flowering Rush

    Butomus umbellatus Flowering Rush - An emergent invasive with a very limited distribution in Washington state that can sometimes stay submerged. Can grow up to 5 feet tall.Leaves: - Thin upward growing leaves that often twist when above the surface of the water and reach 3+ feet in length (when plant is emerged and much longer when it is submerged). Leaves have a triangular cross section.Flowers: - Blooms June - September with umbrella shaped clusters of 20-50 flowers that have 3 sepals and three white to deep purple petals.Habitat: - Can appear in a variety of habitats and is often …


    Weed Control - Sept. 12, 2022, 1:31 p.m.

  9. Giant Hogweed

    Heracleum mantegazzianum Giant Hogweed - A perennial, or sometimes biennial, plant capable of growing 15-20 feet tall. Stout dark reddish-purple splotched stems and leaf stalks.Leaves: Leaves can grow up to 5 feet wide, and they are deeply cut/lobed and sharply toothed edges.Flowers: Flowers bloom from June-August. Flower clusters can grow 2.5 feet wide and are umbrella shaped with many small white flowers.Habitat: Can grow in a variety of habitats, but primarily found along roadsides, rights-of-way, vacant lots, streams, and rivers.Weed Classification: AWhy is it a Noxious Weed?Due to the plant's height, it forms dense canopies that outcompete native species. Plants …


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

  10. Visitation Information

    To sign up please go to HOMEWAV to set up an account. - Please register as soon as possible as it could take up to 72 hours (not including weekends/holidays) to be approved. Homewav has created a new multi-factor authentication process when visitors create a new account. This is to ensure the person creating the account is who they say they are. There are three ways a person can get their verification code: Text message, phone call or email. Para inscribirse por favor vaya al página de HOMEWAV y hacer una cuenta. Por favor inscribirse lo más pronto posible porque …


    Sheriff - Jan. 4, 2016, 10:54 a.m.