Iowa Noxious Weeds

Chapter 317; Iowa Noxious Weed Law

Quack grass (Elymus repens)
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Perennial sow thistle (Sonchus arvensis) (Not a true thistle)
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Canada thistle (Cirsium arvense)
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Bull thistle (Cirsium vulgare)
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Musk Thistle (Carduus nutans L.) (also known as Nodding Thistle)
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European morning glory or field bindweed (Convolvulus arvensis)
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Horse nettle (Solanum carolinense)
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Leafy spurge (Euphorbia esula)
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Perennial pepper-grass (Cardaria draba)
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Russian knapweed (Acroptilon repens)
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Not listed as a noxious weed, is found in Iowa;
Spotted Knapweed (Centaurea stoebe)
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Buckthorn (Rhamnus spp., not to include Frangula alnus, syn. Rhamnus frangula)
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All other species of thistles belonging in the genera of Cirsium and Carduus.
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Butterprint (Abutilon theophrasti) annual.(also known as velvetleaf, buttonweed)
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Cocklebur (Xanthium strumarium) annual
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Wild mustard (Sinapis arvensis) annual
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Wild carrot (Daucus carota) biennial

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Buckhorn (Plantago lanceolata) perennial

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Sheep sorrel (Rumex acetosella) perennial
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Sour dock (Rumex crispus) perennial
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Smooth dock (Rumex altissimus) perennial. (Also known as Pale Dock)
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Poison hemlock (Conium maculatum)
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Multiflora rose (Rosa multiflora)
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Wild sunflower (wild strain of Helianthus annuus L.) annual
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Puncture vine (Tribulus terrestris) annual
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Teasel (Dipsacus spp.) biennial
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Shattercane (Sorghum bicolor) annual
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Prohibited Plants

Purple Loosestrife (Lythrum salicaria) (Also known as Lythrum)
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Garlic Mustard ( Alliaria petiolata)
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Japanese Hops (Humulus japonicus)
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Japanese Knotweed (Multiple forms of Knotweed are considered Invasive)
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Oriental Bittersweet (Celastrus orbiculatus) (also known as Asian Bittersweet)
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