Stevens County Noxious Weed Control Board
This web site will help you identify & control noxious weed with information and photographs to aid you.

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Common teasel
Dipsacus fullonum L.                
Teasel family

Key identifying traits

  • Large club-like flower heads in second year of life cycle; heads are over 2 inches long, spiny and loosely enclosed in cage-like bracts
  • Numerous tiny purple flowers in circular rows around the flower heads
  • Large upright stems have vertical ribs and several rows of downward turned prickles; stout plant skeletons often remain erect through the winter
  • Rosette leaves are wrinkled and oval with prickles on the lower midrib first year; second year leaves are more lance like, conspicuously veined and also have prickles on the lower midrib
  • Leaves of flowering plants form cups that may hold water

Biology and ecology

  • A tap-rooted biennial growing to 6 feet tall
  • Prefers and spreads rapidly in moist sites
  • Upper stems and flower heads often used in dried plant displays
  • Native to Europe now widespread in the US
  • Flowering occurs from July to August
  • Not suitable for grazing


Prevention – Learn to identify plants; know your property; beware of fill dirt and spread through dried flower arrangements

Biological – None known at this time

Cultural – Healthy vegetative cover helps reduce likelihood of establishment but doesn’t stop it

Mechanical – Cutting, digging and cultivation work if repeated enough to eliminate seed production

Chemical – Several effective at label rates if applied to rosettes or early season growth in second year, but control is difficult later in growth cycle; refer to the PNW Weed Management Handbook for specific chemical recommendations


Stephen L. Solheim

tsl3.jpg (34381 bytes)
dried seed head


bolting stalk

Where found –
Widely distributed in Stevens County particularly in moist sites that are not tilled regularly such as in pastures and along streams.  It is moving into drier sites as well.

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Last Edit: March 25, 2015

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