Fauna
Plant · GBIF taxon 5400563

Tall Boneset

Eupatorium altissimum

Also known as Tall Thoroughwort

Tall boneset grows as a robust perennial herb that towers over native prairie grasses and meadow wildflowers each late summer. Its grayish-green stems bear narrow, opposite, three-veined leaves and top out in dense, flat-topped clusters of fuzzy white flowers. These abundant blossoms serve as an essential late-season nectar source for native bees, butterflies, and beneficial wasps preparing for winter.

Native PrairiePollinator MagnetLate Blooming
Tall Boneset reference1 / 7
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Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Key facts
Diet & prey
  • Autotrophic (Photosynthetic)
Predators
  • White-tailed Deer
  • Livestock
  • Grasshoppers
ThreatsHabitat loss, invasive species competition, herbicide spraying
HabitatsPrairies, open woodlands, fields, disturbed roadsides
Life spanPerennial (10+ years)
Classification
  1. OrderAsterales
  2. FamilyAsteraceae
  3. GenusEupatorium
  4. SpeciesEupatorium altissimum
Range & activity
Range data is not available yet.
Safe observation
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Safe to observe at a normal distance.
Responsible observation
  • Observation: Look for dense swarms of native bees, skippers, and beneficial wasps on the nectar-rich flower heads from August through October.
  • Identification: Check the leaves, which are distinctly three-veined, narrow, and attached directly to the stems in opposite pairs.
  • Gardening: Plant in full sun and well-drained soil to support local pollinators without needing supplemental fertilizer.
Related species
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