These two get confused constantly, and it matters more than it used to: tree of heaven is the plant the spotted lanternfly builds its populations on, and Ohio has been under a statewide quarantine since February 2026. Staghorn sumac is a native that belongs where it stands. Here is how to tell them apart without a field guide, and what to do once you know.
The five tells that separate them
Both are fast, tall, and everywhere on disturbed ground across the Cincinnati tri-state. Both carry long compound leaves with a dozen or more leaflets. At ten feet they look like the same plant. Five things separate them, and only one of the five needs you to get close.
1. Leaf edges: the fastest tell
Staghorn sumac leaflets are toothed along their whole length, like a saw blade. Tree of heaven leaflets are smooth-edged for almost the entire leaflet, with one or two blunt teeth right down at the base and nothing after that. If you can see teeth running the full length of a leaflet, it is not tree of heaven. This one tell settles most cases from arm’s reach.
2. The glands at the leaflet base
On those one or two basal teeth, tree of heaven carries a small raised gland on the underside, a bump you can feel with a thumbnail. Staghorn sumac has nothing comparable. This is the diagnostic feature botanists rely on, and it is worth learning because it resolves a leaf that is otherwise ambiguous.
3. Twigs and leaf scars
Staghorn sumac gets its name from its young twigs, which are covered in dense velvet hair and look like a deer’s antlers in velvet. Tree of heaven twigs are stout, smooth and greenish-brown. The leaf scars differ too: tree of heaven leaves a large heart-shaped scar, where sumac’s is narrow and C-shaped, curving nearly all the way around the bud.
4. The smell when you cut it
Break a twig or cut a stem on tree of heaven and it smells strongly unpleasant, usually described as rancid peanut butter or burnt nuts. Sumac has no comparable smell. On a working site this is often what gives it away before anyone has looked at a leaf.
5. Fruit versus seed cluster
From late summer the two are unmistakable. Staghorn sumac holds an upright, dense, fuzzy crimson cone of fruit at the branch tips, and it stays through winter feeding birds. Tree of heaven carries drooping clusters of papery, twisted seeds (samaras) in tan, yellow-green or red. Sumac’s cone points up; tree of heaven’s hangs and rattles in the wind.
Why tree of heaven matters now: the spotted lanternfly
Tree of heaven is the spotted lanternfly’s preferred host. The insect feeds on many species (grapevine and maple among them), but tree of heaven is where it concentrates and where it lays egg masses. Where you have a stand of it, you have the thing the population builds on.
Ohio’s position changed decisively in 2026. On 17 February the Ohio Department of Agriculture replaced its county-by-county quarantine with a statewide one covering all 88 counties, and by mid-summer the insect was being reported across the state. For property owners here the question is no longer whether it arrives.
What Ohio asks property owners to do now
The advice has shifted, and this is where a lot of older pages online are now wrong. Ohio is no longer running a public "report a sighting" campaign. With the insect established statewide, the Department of Agriculture moved from detection to management and points property owners at its Spotted Lanternfly Management Guide instead.
Host-plant removal sits at the centre of that guidance. ODA’s recommendations include hiring a professional for severe infestations or to remove tree of heaven, and in March 2026 the department awarded grants aimed specifically at the lanternfly and tree of heaven together. OSU Extension’s seasonal advice opens on the same action: identify and remove tree of heaven, and treat the stump.
- Walk fence lines, field edges, roadsides and any ground disturbed in the last decade. Tree of heaven colonises those first.
- Look for egg masses on trunks and other smooth surfaces from autumn through spring; they are grey, flat and easy to mistake for mud.
- Note whether you are looking at one tree or a thicket. A thicket usually means root suckers from a parent tree somewhere nearby.
Ohio Department of Agriculture publishes the management guide and the current quarantine terms at agri.ohio.gov, and OSU Extension’s Buckeye Yard and Garden Line (bygl.osu.edu) carries the seasonal treatment calendar. Both are worth reading before you decide what to do with a stand.
Why cutting it makes it worse
This is the mistake that turns one tree into fifty. Tree of heaven reproduces by root suckers as well as by seed, and those roots have been documented as far as 50 feet from the parent tree. Cut the trunk and the root system answers by pushing up stump sprouts and suckers across that whole radius. Mowing does the same thing on a smaller scale, over and over.
The practical consequence is that mechanical cutting on its own is not control, it is propagation. Extension guidance is consistent that cutting works only when integrated with a herbicide treatment, and that the treatment lands best from mid-summer to the onset of autumn colour, when the tree is moving carbohydrate down into its roots and carries the chemical with it.
Removing tree of heaven for good
The mechanical half is what we do, and we do it at scale. A tree-of-heaven stand on this side of the state is rarely on its own. It comes mixed with bush honeysuckle, briars and whatever else has moved into a neglected edge. We grind the whole stand down where it stands in a single pass, with nothing burned and nothing hauled away. On a fence line, a field edge or a back acre that has been let go, that is the bulk of the work.
What we will not tell you is that one pass ends it. On a species that suckers this hard the honest plan is clearing followed by staying after the regrowth, with a licensed applicator handling chemical treatment where the stand warrants it. We will walk through what your ground actually needs during the free estimate, including the parts that are not our work.