New York Natural Heritage Program
Flax-leaf Whitetop
Sericocarpus linifolius (L.) B.S.P.
Dicots
Sericocarpus linifolius in flower Arieh Tal
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?
Formerly known as Aster solidagineus, this is one of the few rare plants where both the name of its genus and species has changed. Both of its species names are descriptive; it has narrow leaves (linifolius) and it does have a goldenrod shape (solidagineus). Its new genus means silky-fruited.

State Ranking Justification [-]
There are seven existing populations but only three of them have more than 100 plants, and they occur in human-disturbed areas that are not managed for this species. More occurrences will likely be found since its habitat is common on Long Island. There are 18 additional historical occurrences and about one third of these are considered extirpated.

Short-term Trends [-]

Long-term Trends [-]