New York Natural Heritage Program
Northern Bog Aster
Symphyotrichum boreale (Torr. & Gray) A. & D. Löve
Dicots
Symphyotrichum boreale Robert H. Mohlenbrock. USDA SCS. 1989; downloaded from the USDA Plants Database
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: S2
A State Rarity Rank of S2 means: This plant is threatened/imperiled in New York because of rarity (typically 6-20 populations or few remaining individuals) or is vulnerable to extirpation from New York due to biological factors.

Global Rarity Rank: G5
A Global Rarity Rank of G5 means: This species is demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.


Did you know?
The difficulty of exploring the wet, unstable, and often shrubby bog habitat of this aster prevents many people from seeing it. Even when the habitat is surveyed this aster's narrow stems and leaves are often overlooked unless it is flowering.

State Ranking Justification [-]
There are 15 known populations and equally as many historical populations. More surveys are needed at these historical locations. This aster has a broad distribution across the state, but a rather narrow habitat requirement (bogs and fens). It is unclear if this is truly a rare plant, or if it is often overlooked.

Short-term Trends [-]

Long-term Trends [-]