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Tall Rattlesnake-root

Prenanthes altissima

Found in forests. Weakley, Flora of the Southeastern United States (2025), Northern Tier edition What its natural habitat tells you

40
Good

Native to West Virginia. How scores work Is it native here?

Profile 94%

Height
2–8 feet
Spread
2–3 feet
Light
Dappled sunlight, Deep shade
Soil moisture
Usually moist

Space about 2.5 ft apart from its recorded spread, about 16 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
August to November

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 and woodlands

Forest or woodland where the source does not say how moist or dry.

All habitats

Ecological relationships

Who uses this plant?

What these records mean

2CaterpillarsGenus host records with ranges including WV

Genus host records with ranges including WV · Nabalus

  • Argyrotaenia marianaGray-Banded Leafroller Moth
  • Paralobesia rhoifructana
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
9BeesSoutheastern regional records

Southeastern regional records · Nabalus

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
1Specialist beesPollen specialists

Pollen specialists · Nabalus

  • Colletes compactus
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
—BirdsRecorded genus food-resource interactions; not a state feeding claim

No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects

Growing and identification

Plant details

Family
Asteraceae
Hardiness
Zones 3a–8b
Soil pH
Acidic to neutral
Flower color
Yellow or green

Safety has not been reviewed for this plant; check toxicity and thorns before planting.

Growing sources and scope
Also known as

Prenanthes altissima; Tall Rattlesnake Root

Conservation status

West Virginia rankS5
Global rankG5
WV statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

Will it fit your yard?

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How to check your spot

Sources