Amur Corktree – Phellodendron amurense Not recorded hereInvasive
Invasive in the US, and recorded in no Indiana county. Indiana lists Amur Corktree as a prohibited invasive terrestrial plant.
Indiana invasive plants
Indiana (IN) regulates 43 invasive plants under 312 IAC 18-3-25. Indiana's list is a trade restriction, which governs what may be sold, propagated, or moved within the state — in plain terms, which plants are illegal to sell here.
Indiana invasive species list
Indiana restricts 43 plants, including Leafy Spurge, Tree of Heaven and Nodding Plumeless Thistle. Plants marked Prohibited may not be sold, propagated, or moved within Indiana. 40 of the 43 are also flagged invasive by GRIIS, which is an ecological finding rather than a ruling by Indiana. Checked against 312 IAC 18-3-25 on July 20, 2026.
Amur Honeysuckle – Lonicera maackii Not recorded hereInvasive
Invasive in the US, and recorded in no Indiana county. Indiana lists Amur Honeysuckle as a prohibited invasive terrestrial plant.
Asiatic Tearthumb – Polygonum perfoliatum Not recorded hereInvasive
Invasive in the US, and recorded in no Indiana county. Indiana lists Asiatic Tearthumb as a prohibited invasive terrestrial plant.
Autumn Olive – Elaeagnus umbellata IntroducedInvasive
Invasive in the US, and recorded in 27 of Indiana’s 92 counties. Indiana lists Autumn Olive as a prohibited invasive terrestrial plant.
Black Alder – Alnus glutinosa Not recorded hereInvasive
Invasive in the US, and recorded in no Indiana county. Indiana lists Black Alder as a prohibited invasive terrestrial plant.
Bohemian Knotweed – Polygonum x bohemicum Not recorded hereProhibited
Recorded in no Indiana county. Indiana lists Bohemian Knotweed as a prohibited invasive terrestrial plant.
Border Privet – Ligustrum obtusifolium IntroducedInvasive
Invasive in the US, and recorded in 1 of Indiana’s 92 counties. Indiana lists Border Privet as a prohibited invasive terrestrial plant.
Broadleaved Pepperweed – Lepidium latifolium Not recorded hereInvasive
Invasive in the US, and recorded in no Indiana county. Indiana lists Broadleaved Pepperweed as a prohibited invasive terrestrial plant.
Bull Thistle – Cirsium vulgare IntroducedInvasive
Invasive in the US, and recorded in 42 of Indiana’s 92 counties. Indiana lists Bull Thistle as a prohibited invasive terrestrial plant.
Chinese Yam – Dioscorea oppositifolia Not recorded hereInvasive
Invasive in the US, and recorded in no Indiana county. Indiana lists Chinese Yam as a prohibited invasive terrestrial plant.
Common Buckthorn – Rhamnus cathartica Not recorded hereInvasive
Invasive in the US, and recorded in no Indiana county. Indiana lists Common Buckthorn as a prohibited invasive terrestrial plant.
Common Wormwood – Artemisia vulgaris IntroducedInvasive
Invasive in the US, and recorded in 1 of Indiana’s 92 counties. Indiana lists Common Wormwood as a prohibited invasive terrestrial plant.
Crownvetch – Securigera varia IntroducedInvasive
Invasive in the US, and recorded in 13 of Indiana’s 92 counties. Indiana lists Crownvetch as a prohibited invasive terrestrial plant.
Cutleaf Teasel – Dipsacus laciniatus IntroducedInvasive
Invasive in the US, and recorded in 4 of Indiana’s 92 counties. Indiana lists Cutleaf Teasel as a prohibited invasive terrestrial plant.
Dames Rocket – Hesperis matronalis IntroducedInvasive
Invasive in the US, and recorded in 16 of Indiana’s 92 counties. Indiana lists Dames Rocket as a prohibited invasive terrestrial plant.
European Swallow-Wort – Cynanchum rossicum Not recorded hereInvasive
Invasive in the US, and recorded in no Indiana county. Indiana lists European Swallow-Wort as a prohibited invasive terrestrial plant.
Field Bindweed – Convolvulus arvensis IntroducedInvasive
Invasive in the US, and recorded in 35 of Indiana’s 92 counties. Indiana lists Field Bindweed as a prohibited invasive terrestrial plant.
Fuller's Teasel – Dipsacus fullonum IntroducedProhibited
Recorded in 50 of Indiana’s 92 counties. Indiana lists Fuller's Teasel as a prohibited invasive terrestrial plant.
Garlic Mustard – Alliaria petiolata IntroducedInvasive
Invasive in the US, and recorded in 7 of Indiana’s 92 counties. Indiana lists Garlic Mustard as a prohibited invasive terrestrial plant.
Giant Knotweed – Polygonum sachalinense Not recorded hereInvasive
Invasive in the US, and recorded in no Indiana county. Indiana lists Giant Knotweed as a prohibited invasive terrestrial plant.
Glossy Buckthorn – Frangula alnus IntroducedInvasive
Invasive in the US, and recorded in 3 of Indiana’s 92 counties. Indiana lists Glossy Buckthorn as a prohibited invasive terrestrial plant.
Japanese Barberry – Berberis thunbergii IntroducedInvasive
Invasive in the US, and recorded in 3 of Indiana’s 92 counties. Indiana lists Japanese Barberry as a prohibited invasive terrestrial plant.
Japanese Chaff Flower – Achyranthes japonica IntroducedInvasive
Invasive in the US, and recorded in 9 of Indiana’s 92 counties. Indiana lists Japanese Chaff Flower as a prohibited invasive terrestrial plant.
Japanese Hop – Humulus japonicus IntroducedInvasive
Invasive in the US, and recorded in 10 of Indiana’s 92 counties. Indiana lists Japanese Hop as a prohibited invasive terrestrial plant.
Japanese Knotweed – Fallopia japonica (potentially invasive weed) IntroducedInvasive
Invasive in the US, and recorded in 7 of Indiana’s 92 counties. Indiana lists Japanese Knotweed as a prohibited invasive terrestrial plant.
Leafy Spurge – Euphorbia esula IntroducedInvasive
Invasive in the US, and recorded in 4 of Indiana’s 92 counties. Indiana lists Leafy Spurge as a prohibited invasive terrestrial plant.
Louise's Swallow-Wort – Cynanchum louiseae Not recorded hereInvasive
Invasive in the US, and recorded in no Indiana county. Indiana lists Louise's Swallow-Wort as a prohibited invasive terrestrial plant.
Morrow's Honeysuckle – Lonicera morrowii Not recorded hereInvasive
Invasive in the US, and recorded in no Indiana county. Indiana lists Morrow's Honeysuckle as a prohibited invasive terrestrial plant.
Nepalese Browntop – Microstegium vimineum IntroducedInvasive
Invasive in the US, and recorded in 2 of Indiana’s 92 counties. Indiana lists Nepalese Browntop as a prohibited invasive terrestrial plant.
Nodding Plumeless Thistle – Carduus nutans IntroducedInvasive
Invasive in the US, and recorded in 12 of Indiana’s 92 counties. Indiana lists Nodding Plumeless Thistle as a prohibited invasive terrestrial plant.
Oriental Bittersweet – Celastrus orbiculatus Not recorded hereInvasive
Invasive in the US, and recorded in no Indiana county. Indiana lists Oriental Bittersweet as a prohibited invasive terrestrial plant.
Poison Hemlock – Conium maculatum IntroducedInvasive
Invasive in the US, and recorded in 25 of Indiana’s 92 counties. Indiana lists Poison Hemlock as a prohibited invasive terrestrial plant.
Purple Winter Creeper – Euonymus fortunei Not recorded hereInvasive
Invasive in the US, and recorded in no Indiana county. Indiana lists Purple Winter Creeper as a prohibited invasive terrestrial plant.
Purple-Leaf Japanese Honeysuckle – Lonicera japonica 'Purpurea' IntroducedInvasive
Invasive in the US, and recorded in 23 of Indiana’s 92 counties. Indiana lists Purple-Leaf Japanese Honeysuckle as a prohibited invasive terrestrial plant.
Reed Canarygrass – Phalaris arundinacea NativeProhibited
Recorded in 40 of Indiana’s 92 counties. Indiana lists Reed Canarygrass as a prohibited invasive terrestrial plant.
Sericea Lespedeza – Lespedeza cuneata IntroducedInvasive
Invasive in the US, and recorded in 9 of Indiana’s 92 counties. Indiana lists Sericea Lespedeza as a prohibited invasive terrestrial plant.
Showy Fly Honeysuckle – Lonicera x bella IntroducedInvasive
Invasive in the US, and recorded in 1 of Indiana’s 92 counties. Indiana lists Showy Fly Honeysuckle as a prohibited invasive terrestrial plant.
Small Carpetgrass – Arthraxon hispidus IntroducedInvasive
Invasive in the US, and recorded in 4 of Indiana’s 92 counties. Indiana lists Small Carpetgrass as a prohibited invasive terrestrial plant.
Spiny Plumeless Thistle – Carduus acanthoides Not recorded hereInvasive
Invasive in the US, and recorded in no Indiana county. Indiana lists Spiny Plumeless Thistle as a prohibited invasive terrestrial plant.
Spotted Knapweed – Centaurea stoebe IntroducedInvasive
Invasive in the US, and recorded in 7 of Indiana’s 92 counties. Indiana lists Spotted Knapweed as a prohibited invasive terrestrial plant.
Tatarian Honeysuckle – Lonicera tatarica Not recorded hereInvasive
Invasive in the US, and recorded in no Indiana county. Indiana lists Tatarian Honeysuckle as a prohibited invasive terrestrial plant.
Tree of Heaven – Ailanthus altissima IntroducedInvasive
Invasive in the US, and recorded in 19 of Indiana’s 92 counties. Indiana lists Tree of Heaven as a prohibited invasive terrestrial plant.
White Mulberry – Morus alba IntroducedInvasive
Invasive in the US, and recorded in 33 of Indiana’s 92 counties. Indiana lists White Mulberry as a prohibited invasive terrestrial plant.
No plant on Indiana’s list matches that.
1 of these plant is native to part of the United States, marked US native above. Nativity is regional. Black locust is native to the Appalachians and regulated in New England; Palmer amaranth is native to the Southwest and listed as an agricultural weed in the Corn Belt. A listing tells you what Indiana regulates, not where a plant belongs. The county checker answers the second question.
Want to check a plant by photo or county?
Use our “Is it native” tool for free.Compiled from the rule itself, retrieved July 20, 2026. Law changes; if you spot a listing we have wrong or stale, tell us at support@getezina.com.
The same list as a table
| Plant | Scientific name | Status | Plant instead |
|---|---|---|---|
| Amur Corktree | Phellodendron amurense | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | Western Catalpa, Kentucky Coffeetree, Eastern Black Walnut |
| Amur Honeysuckle | Lonicera maackii | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | Rough-Leaf Dogwood, Common Witch Hazel, Smooth Sumac |
| Asiatic Tearthumb | Polygonum perfoliatum | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | — |
| Autumn Olive | Elaeagnus umbellata | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | Smooth Sumac, Chickasaw Plum, American Black Elderberry |
| Black Alder | Alnus glutinosa | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | Swamp Cottonwood, River/Red Birch, Balsam Poplar |
| Bohemian Knotweed | Polygonum x bohemicum | ProhibitedIndiana says “prohibited invasive terrestrial plant” | — |
| Border Privet | Ligustrum obtusifolium | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | White Meadowsweet, Sandcherry, American Black Currant |
| Broadleaved Pepperweed | Lepidium latifolium | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | — |
| Bull Thistle | Cirsium vulgare | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | — |
| Chinese Yam | Dioscorea oppositifolia | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | Riverbank Grape, Graybark Grape, Frost Grape |
| Common Buckthorn | Rhamnus cathartica | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | Rough-Leaf Dogwood, Common Witch Hazel, Smooth Sumac |
| Common Wormwood | Artemisia vulgaris | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | Illinois Bundleflower, Common Sneeze Weed, Canadian Milkvetch |
| Crownvetch | Securigera varia | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | — |
| Cutleaf Teasel | Dipsacus laciniatus | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | — |
| Dames Rocket | Hesperis matronalis | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | Woolly Yarrow, Drummond's Rockcress, Rough Avens |
| European Swallow-Wort | Cynanchum rossicum | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | — |
| Field Bindweed | Convolvulus arvensis | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | — |
| Fuller's Teasel | Dipsacus fullonum | ProhibitedIndiana says “prohibited invasive terrestrial plant” | — |
| Garlic Mustard | Alliaria petiolata | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | — |
| Giant Knotweed | Polygonum sachalinense | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | — |
| Glossy Buckthorn | Frangula alnus | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | Shining Willow, Speckled Alder, Silky Dogwood |
| Japanese Barberry | Berberis thunbergii | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | American Barberry, White Meadowsweet, Mountain Laurel |
| Japanese Chaff Flower | Achyranthes japonica | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | — |
| Japanese Hop | Humulus japonicus | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | — |
| Japanese Knotweed | Fallopia japonica (potentially invasive weed) | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | — |
| Leafy Spurge | Euphorbia esula | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | — |
| Louise's Swallow-Wort | Cynanchum louiseae | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | — |
| Morrow's Honeysuckle | Lonicera morrowii | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | White Meadowsweet, Sandcherry, American Black Currant |
| Nepalese Browntop | Microstegium vimineum | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | — |
| Nodding Plumeless Thistle | Carduus nutans | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | — |
| Oriental Bittersweet | Celastrus orbiculatus | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | American Bittersweet, Yellow Passionflower, Climbing Rose |
| Poison Hemlock | Conium maculatum | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | — |
| Purple Winter Creeper | Euonymus fortunei | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | Pipsissewa, Cat Greenbrier, Bunchberry |
| Purple-Leaf Japanese Honeysuckle | Lonicera japonica 'Purpurea' | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | Grape Honeysuckle, Trumpet Vine, Devil's Darning Needles |
| Reed Canarygrass US native | Phalaris arundinacea | ProhibitedIndiana says “prohibited invasive terrestrial plant” | Common Rush, Sweet Woodreed, Shortbristle Horned Beaksedge |
| Sericea Lespedeza | Lespedeza cuneata | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | — |
| Showy Fly Honeysuckle | Lonicera x bella | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | White Meadowsweet, Sandcherry, American Black Currant |
| Small Carpetgrass | Arthraxon hispidus | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | — |
| Spiny Plumeless Thistle | Carduus acanthoides | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | — |
| Spotted Knapweed | Centaurea stoebe | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | — |
| Tatarian Honeysuckle | Lonicera tatarica | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | American Fly Honeysuckle, American Black Currant, White Meadowsweet |
| Tree of Heaven | Ailanthus altissima | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | Western Catalpa, Kentucky Coffeetree, Post Oak |
| White Mulberry | Morus alba | ProhibitedInvasiveIndiana says “prohibited invasive terrestrial plant” | Red Mulberry, Osage-Orange, Scarlet Oak |
Where this comes from
- Indiana listings
- 312 IAC 18-3-25. Read the rule.
- Invasive status
- GRIIS, the Global Register of Introduced and Invasive Species, via GBIF, covering the lower 48 states. A scientific register with no legal force; it is cited separately from the statute above because the two disagree far more often than they agree. Garden crops it flags only for spreading from cultivation are left out after review.
- Status wording
- The Prohibited / Restricted / Listed chips are Ezina’s normalisation across 44 states and are not the legal term. Where Indiana’s own word for a plant differs from the chip, it is quoted verbatim beneath it.
- Nativity
- USDA PLANTS county distribution layer, surfaced through the county checker.
Regulated next door, but not in Indiana
Plants that two or more states bordering Indiana regulate, and Indiana does not. A listing is a legal act rather than an ecological one, so a plant can be a documented problem here and still be sold here.
- Callery Pear Pyrus calleryana regulated in Illinois, Michigan, Ohio
- Giant Hogweed Heracleum mantegazzianum regulated in Illinois, Michigan, Ohio
- Purple Loosestrife Lythrum salicaria regulated in Illinois, Michigan, Ohio
- Common Frogbit Hydrocharis morsus-ranae regulated in Michigan, Ohio
- Curly Pondweed Potamogeton crispus regulated in Michigan, Ohio
- Eurasian Watermilfoil Myriophyllum spicatum regulated in Michigan, Ohio
- Fig Buttercup Ranunculus ficaria regulated in Illinois, Ohio
- Flowering Rush Butomus umbellatus regulated in Michigan, Ohio
- Kudzu Pueraria montana regulated in Illinois, Ohio
- Multiflora Rose Rosa multiflora regulated in Illinois, Ohio
- Oxygen-Weed Lagarosiphon major regulated in Michigan, Ohio
- Russian Olive Elaeagnus angustifolia regulated in Illinois, Ohio
- Water Chestnut Trapa natans regulated in Michigan, Ohio
- Water Lettuce Pistia stratiotes regulated in Michigan, Ohio
- Water Soldiers Stratiotes aloides regulated in Michigan, Ohio
Questions
Is there an official Indiana invasive species list?
Yes. 312 IAC 18-3-25 is Indiana's list, naming 43 plants under a trade restriction, which governs what may be sold, propagated, or moved within the state — in plain terms, which plants are illegal to sell here. GRIIS, the Global Register of Introduced and Invasive Species, flags 40 of these 43 as invasive in the lower 48 states. That is an ecological finding, not a ruling by Indiana. This page shows both side by side.
What plants are illegal to sell in Indiana?
43 plants are regulated under 312 IAC 18-3-25. Plants marked Prohibited may not be sold, propagated, or moved within Indiana. Plants marked Restricted carry narrower limits set by the rule.
Is my plant invasive in Indiana?
Search the table on this page for Indiana's legal determination, then look for the Invasive chip beside it, which is a separate ecological finding from GRIIS rather than a ruling by Indiana. A plant can carry one, both, or neither. For an address-level answer, enter the plant's name in Ezina's checker to get its Indiana status alongside whether USDA records it as native to your specific county. Every answer links the record it came from.
Is it illegal to plant these in Indiana?
For the plants marked Prohibited, 312 IAC 18-3-25 bars selling, propagating, or moving them within Indiana. Whether planting one you already own is itself an offence depends on that rule's exact wording, which is why every plant on this page links the citation rather than us paraphrasing it. Plants marked Restricted carry narrower limits the rule sets out.
Does a plant missing from this list mean it is safe to plant in Indiana?
No. This page reproduces what Indiana regulates, and a state list is a legal instrument rather than an ecological verdict. Plenty of plants spread aggressively without ever being listed, and states add species years after the problem is documented.
Grow natives easily with Ezina
How it works
We provide the tools you need to succeed.
010.1Identify
Add a plant
Snap a photo or type the name. Ezina matches it to a library of about 40,000 species and starts a care plan tailored to your zone, the local weather, and the time of year.
010.2Care
Get a care plan
A schedule built from local rain, temperature, and sun, not a fixed weekly cadence. You get a single notification when a plant actually needs water. Easily add treatments for diseases and pests.
010.3Plan
Explore new options
Our garden planner Dig helps you understand what works best for your location and makes suggestions based off your long term goals.
Add a plant
Snap a photo or type the name. Ezina matches it to a library of about 40,000 species and starts a care plan tailored to your zone, the local weather, and the time of year.
Get a care plan
A schedule built from local rain, temperature, and sun, not a fixed weekly cadence. You get a single notification when a plant actually needs water. Easily add treatments for diseases and pests.
Explore new options
Our garden planner Dig helps you understand what works best for your location and makes suggestions based off your long term goals.
Compiled from peer-reviewed research, USDA documentation,
and direct scientific observation across the United States.