New York Natural Heritage Program
Serrate Round-leaf Boneset
Eupatorium pubescens Muhl. ex Willd.
Eupatorium rotundifolium var. ovatum plants Kimberly J. Smith
Family: Aster Family (Asteraceae)

State Protection: Endangered
listed species are those with: 1) 5 or fewer extant sites, or 2) fewer than 1,000 individuals, or 3) restricted to fewer than 4 U.S.G.S. 7 minute topographical maps, or 4) species listed as endangered by U.S. Department of Interior.

Federal Protection: Not Listed

State Rarity Rank: S1
A State Rarity Rank of S1 means: This plant is endangered/critically imperiled in New York because of extreme rarity (typically 5 or fewer populations or very few remaining individuals) or is extremely vulnerable to extirpation from New York due to biological factors.

Global Rarity Rank: G5T5
A Global Rarity Rank of G5T5 means: Secure globally - Both the species as a whole and the subspecies/variety are common in the world; widespread and abundant (but may be rare in some parts of its range).

Did you know?
The species name rotundifolium is derived from the Latin "rotund" meaning "round" and "foli(um)" meaning "leaf." The genus name Eupatorium honors Mithridates VI of Pontus (132BC - 63BC), who was also known as Eupator Dionysius (Wikipedia contributors). Eupatorium rotundifolium contains eupatorin acetate, a guaianolide which may have anti-cancer properties, as well as eupachlorin acetate, a related compound which may also inhibit tumors (Wikipedia contributors).

State Ranking Justification [-]
There are five existing populations, but two of them have fewer than 10 plants. There is one other historical occurrence on Staten Island.

Short-term Trends [-]

Long-term Trends [-]