White Snakeroot
Ageratina altissima
Found in moist forests, such as cove forests. moist forests, successional and disturbed forests, old fields. Weakley, Flora of the Southeastern United States (2025), Northern Tier edition What its natural habitat tells you
Native to West Virginia. How scores work Is it native here?
Profile 100%
- Height
- 2–5 feet
- Spread
- 2–4 feet
- Light
- Deep shade, Full sun, Partial shade
- Soil moisture
- Somewhat dry to moist
Space about 3 ft apart from its recorded spread, about 11 per 100 sq ft. Enter your bed size for a count
Will it fit your yard?
At a glance
- Life cycle
- Perennial
- Leaves
- Deciduous
- Bloom
- Summer and fall
Recorded in 13 West Virginia counties.
Natural habitats
Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.
Forests on moist but not wet ground, such as rich slopes and ravines.
Sheltered, moist mountain hollows and lower slopes with deep, fertile soil.
Forest or woodland where the source does not say how moist or dry.
Roadsides, fields and disturbed ground
Ground opened by people: roadsides, old fields, pastures, fencerows and lots.
Also found with this plant
Wildlife whose habitat models include habitats this plant grows in, in West Virginia. Shared habitat, not food. 143 animals.
- Black-billed CuckooCoccyzus erythropthalmus
- Black-throated Green WarblerDendroica virens
- Blue-headed VireoVireo solitarius
- Carolina ChickadeePoecile carolinensis
- Carolina WrenThryothorus ludovicianus
- Chestnut-sided WarblerDendroica pensylvanica
- Common GrackleQuiscalus quiscula
- Common YellowthroatGeothlypis trichas
- Double-crested CormorantPhalacrocorax auritus
- Eastern TowheePipilo erythrophthalmus
- Eastern Wood-peweeContopus virens
- Great Crested FlycatcherMyiarchus crinitus
- Hooded WarblerWilsonia citrina
- Kentucky WarblerOporornis formosus
- Least FlycatcherEmpidonax minimus
- Louisiana WaterthrushSeiurus motacilla
- Northern ParulaParula americana
- Orange-crowned WarblerVermivora celata
- Red-bellied WoodpeckerMelanerpes carolinus
- Red-breasted NuthatchSitta canadensis
- Rose-breasted GrosbeakPheucticus ludovicianus
- Ruby-throated HummingbirdArchilochus colubris
- Scarlet TanagerPiranga olivacea
- Summer TanagerPiranga rubra
Who uses this plant?
36CaterpillarsGenus host records with ranges including WV
Genus host records with ranges including WV · Eupatorium
- Agonopterix pulvipennellaGoldenrod Leaffolder, Featherduster Agonopterix
- Anavitrinella pampinariaCommon Gray, Cranberry Spanworm
- Carmenta bassiformisEupatorium Borer Moth, Ironweed Clearwing Moth
- Carmenta pyralidiformisBoneset Borer Moth
- Chlorochlamys chloroleucariaBlackberry Looper Moth
- Chrysodeixis includensSoybean Looper Moth
- Cisseps fulvicollisYellow-Collared Scape Moth
- Condica vecorsDusky Groundling
- Dichomeris setosellaHairy Dichomeris
- Digrammia continuataCurve-Lined Angle
Show all 36
- Dysodia oculatanaEyed Thyris
- Estigmene acreaSalt Marsh Moth, Acrea Moth
- Eupithecia miserulataCommon Eupithacia, Common Pug
- Feltia subgothicaSubgothic Dart
- Feltia tricosaConfused Dart, Tricose Dart
- Haploa clymeneClymene Moth
- Oedemasia concinnaRed-Humped Caterpillar, Red-Humped Appleworm
- Oidaematophorus eupatoriiEupatorium Plume Moth
- Orthodes majusculaRustic Quaker, Rustic Groundcat
- Ostrinia obumbratalisSmartweed Borer
- Papaipema cataphractaBurdock Border, Potato-Stalk Borer
- Papaipema eupatoriiJoe-Pye Weed Borer, Eupatorium Borer Moth
- Papaipema harrisiiHeracleum Stem Borer Moth, Cow Parsnip Borer
- Perigea xanthioidesRed Groundling
- Phragmatobia fuliginosaRuby Tiger Moth
- Phragmatobia lineataLined Ruby Tiger Moth
- Platynota flavedanaBlack-Shaded Platynota
- Pleuroprucha insulsariaCommon Tan Wave
- Schinia trifasciaThree-Lined Flower Moth
- Spoladea recurvalisHawaiian Beet Webworm
- Synchlora aerataWavy-Lined Emerald, Camouflaged Looper
- Tornos scolopacinariaDimorphic Gray
- Agonopterix atrodorsella
- Agonopterix eupatoriiella
- Chionodes pseudofondella
- Dichomeris washingtoniella
34BeesSoutheastern regional records
Southeastern regional records · Eupatorium
Individual names are not available yet.
Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
4Specialist beesPollen specialists
Pollen specialists · Ageratina
- Andrena asteris
- Andrena hirticincta
- Andrena nubecula
- Colletes thysanellae
1BirdsRecorded genus food-resource interactions; not a state feeding claim
Recorded genus food-resource interactions; not a state feeding claim · Eupatorium
- Ortalis vetulaPlain Chachalaca
Direct food only: birds recorded eating this genus across North America. Caterpillars on host plants also feed nesting birds. NC Native Plant Society: butterfly gardening
No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects
Plant details
- Family
- Asteraceae
- Hardiness
- Zones 3a–9b
- Soil pH
- Neutral to alkaline
- Flower color
- White
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Growing sources and scope
- Bloom · “Summer and fall” · NC Extension Plant Toolbox (ranked first; Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition, Prairie Moon 2026 Cultural Guide differ)
- Flower color · “White” · NC Extension Plant Toolbox
- Hardiness · “Zones 3a–9b” · NC Extension Plant Toolbox (ranked first; Missouri Botanical Garden Plant Finder differs)
- Height · “2–5 feet” · NC Extension Plant Toolbox (ranked first; Lady Bird Johnson Wildflower Center, Missouri Botanical Garden Plant Finder, Prairie Moon 2026 Cultural Guide differ)
- Leaves · “Deciduous” · NC Extension Plant Toolbox
- Life cycle · “Perennial” · NC Extension Plant Toolbox
- Light · “Deep shade (less than 2 hours to no direct sunlight); Full sun (6 or more hours of direct sunlight a day); Partial shade (direct sunlight only part of the day, 2-6 hours)” · NC Extension Plant Toolbox (ranked first; Tennessee Smart Yards, Virginia DCR Piedmont, Virginia DCR Coastal Plain, Lady Bird Johnson Wildflower Center, Missouri Botanical Garden Plant Finder, Prairie Moon 2026 Cultural Guide differ)
- primary_flower_color · “white” · NC Extension Plant Toolbox
- Soil · “Good drainage; Moist; Occasionally dry” · NC Extension Plant Toolbox (ranked first; Tennessee Smart Yards, Virginia DCR Piedmont, Virginia DCR Coastal Plain, Lady Bird Johnson Wildflower Center, Missouri Botanical Garden Plant Finder, Prairie Moon 2026 Cultural Guide differ)
- Soil pH · “Neutral to alkaline” · NC Extension Plant Toolbox
- Spread · “2–4 feet” · NC Extension Plant Toolbox
Also known as
Eupatorium rugosum; thoroughwort
Conservation status
| West Virginia rank | S5 |
|---|---|
| Global rank | G5 |
| WV status | Not verified |
| Federal status | Not verified |
Will it fit your yard?
Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.
Growing cautions
- Spreads aggressively. Spreads slowly by rhizomes and more aggressively by re-seeding. Tennessee Smart Yards
For planning only; these do not change the score or Fit.
Sources
- NatureServe Explorer
- USDA PLANTS
- Vascular Plants of North Carolina (NC Natural Heritage Program)
- Weakley, Flora of the Southeastern United States (2025)
- West Virginia occurrence source
- Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
- Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
- Smith, Bachelder, Russell, Morales, Mosher & Seltmann 2024, Bee-Specialization-Modeling v0.6.1 (specialist host table compiled from J. Fowler's pollen specialist bee lists), Zenodo, CC BY 4.0
- Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)
- Narango, Tallamy & Shropshire 2020, Few keystone plant genera support the majority of Lepidoptera species, Nature Communications