Noxious Weeds

The following weeds are hereby declared to be noxious and shall be divided into two classes, as follows:

Primary Noxious Weeds

  • Quack grass (Elymus repens)
  • Perennial sow thistle (Sonchus arvensis)
  • Canada thistle (Cirsium arvense)
  • Bull thistle (Cirsium vulgare)
  • European morning glory or field bindweed (Convolvulus arvensis)
  • Horse nettle (Solanum carolinense)
  • Leafy spurge (Euphorbia esula)
  • Perennial pepper-grass (Cardaria draba)
  • Russian knapweed (Acroptilon repens)
  • Buckthorn (Rhamnus spp., not to include Frangula alnus, syn.Rhamnus frangula)
  • All other species of thistles belonging in the genera of Cirsium and Carduus
  • Palmer amaranth (Amaranthus palmeri)

Secondary Noxious Weeds

  • Butterprint (Abutilon theophrasti) annual
  • Cocklebur (Xanthium strumarium) annual
  • Wild mustard (Sinapis arvensis) annual
  • Wild carrot (Daucus carota) biennial
  • Buckhorn (Plantago lanceolata) perennial
  • Sheep sorrel (Rumex acetosella) perennial
  • Sour dock (Rumex crispus) perennial
  • Smooth dock (Rumex altissimus) perennial
  • Poison hemlock (Conium maculatum)
  • Multiflora rose (Rosa multiflora)
  • Wild sunflower (wild strain of Helianthus annuus L.) annual
  • Puncture vine (Tribulus terrestris) annual
  • Teasel (Dipsacus spp.)biennial
  • Shattercane (Sorghum bicolor) annual

List Dated: December 11, 2025

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This content was printed from the County website at woodburycountyiowa.gov on April 8, 2026.