New York Natural Heritage Program
Mountain Spleenwort
Asplenium montanum Willd.
Ferns
Family: Spleenwort Family (Aspleniaceae)

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: 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?
This fern was first discovered in New York in the Mohonk Lake area in the 1870s. It seems restricted to the white conglomerate rock of the Shawangunk Mountains where the largest group in New York was found in 2003.

State Ranking Justification [-]
This fern is relatively common within the small confines of the Shawangunk Mountains. There are at least 12 known populations within the Shawangunks and few threats except for unscrupulous climbing. As more populations are found, this plant may eventually be moved to the watch list. Arguably, the Shawangunk populations may represent one or only a few meta-populations with multiple sub-populations.

Short-term Trends [-]

Long-term Trends [-]