New York Natural Heritage Program
Atlantic White Cedar
Chamaecyparis thyoides (L.) B.S.P.
Conifers
Chamaecyparis thyoides Gregory J. Edinger
Family: Cypress Family (Cupressaceae)

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: G4
A Global Rarity Rank of G4 means: This species is apparently secure globally (typically with more than 100+ populations), though it may be quite rare in parts of its range, especially at the periphery.


Did you know?
Atlantic white cedar trees grow slowly and may live for more than 1000 years. The wood is very resistant to decay. Trees buried in peat bogs for decades have been recovered still in excellent condition. One of the largest inland Atlantic white cedar wetland complexes in the world was located along the Wallkill River flood plain in southern Orange County. Originally over 50,000 acres the "Drowned Lands" swamp was almost completely converted to agriculture by the 1970s.

State Ranking Justification [-]
There are 16 existing populations and about half of them are large and protected. The remaining populations are small with usually under 100 trees but some of them are in protected areas. While some small occurrences may still be discovered it is not expected that additional large populations would be found. All of the historical populations have been checked.

Short-term Trends [-]

Long-term Trends [-]