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Threatened or Endangered Plant Species in the Cold River Corridor

The list, to the best of our knowledge, of endangered or threatened plant species that are supported by the Cold River and river corridor environment. Also indicated is whether or not these plants are endangered [E] or threatened [T] species and if they are significant at a national [N] or state [S] level.

Plant Species

  Location

E or T

  N or S

Corridor 

Black Maple 

Cold River, Alstead 

T

S

Ciliated Willow-Herb

Vilas Pool, Alstead

T

S

Four-Leaved Milkweed

Cold River, Walpole
& Drewsville Plain, Walpole

T

S

Goldie's Fern 

Alstead 

T

S

Meadow Horsetail

Cold River, Walpole

T

S

Watershed 

Bur Sledge

Alstead

E

S

Downy False-Foxglove

Alstead

T

S

Four-Leaved Milkweed

Fall Mountain, Walpole

T

S

Narrow-Leaved Spleenwort

Alstead

E

S

Northeastern Bulrush

Mitchell Pond, Acworth; 
4 sites in North Pond/Middle, 
Pond area, Charlestown & 
Langdon

E

N

Northern Waterleaf

Fall Mountain, Walpole

T

S

Philadelphia Panic-Grass

Alstead

E

S

Sweet Goldenrod

Fall Mountain, Walpole

T

S

Three-Leaved Black Snakeroot

Alstead

T

S

Virginian Mountain Mint

Alstead

E

S

Woodland Hound's-Tongue

Fall Mountain, Walpole; 
Alstead; Langdon

T

S

(Source, NH DRED Natural Heritage Inventory, February 1998)

Stone Wall