New York Natural Heritage Program
Trinerved White Boneset
Eupatorium subvenosum (A. Gray) E.E. Schill.
Family: Aster Family (Asteraceae)

State Protection: Threatened
listed species are those with: 1) 6 to fewer than 20 extant sites, or 2) 1,000 to fewer than 3,000 individuals, or 3) restricted to not less than 4 or more than 7 U.S.G.S. 7 minute topographical maps, or 4) listed as threatened by U.S. Department of Interior.

Federal Protection: Not Listed

State Rarity Rank: S2S3
A State Rarity Rank of S2S3 means: Imperiled or Vulnerable in New York - Very vulnerable to disappearing from New York, or vulnerable to becoming imperiled in New York, due to rarity or other factors; typically 6 to 80 populations or locations in New York, few individuals, restricted range, few remaining acres (or miles of stream), and/or recent and widespread declines. More information is needed to assign a single conservation status.

Global Rarity Rank: G5T4
A Global Rarity Rank of G5T4 means: Apparently Secure globally - The subspecies/variety is uncommon in the world but not rare; usually widespread, but may be rare in some parts of its range; possibly some cause for long-term concern due to declines or other factors. (The species as a whole is common globally.)

Did you know?
This variety may have arisen from hybridization of Eupatorium album var. album and Eupatorium serotinum (Flora of North America Editorial Committee 2006) both of which occur in small populations on Long Island.

State Ranking Justification [-]
There are 11 existing populations, but many of these have not been seen during recent surveys. Future surveys will determine if they should be considered extirpated. There are 16 historical occurrences.

Short-term Trends [-]

Long-term Trends [-]