Natural Resources

Rare Species


Dwarfwedge Mussel	Wood Turtle

State Listed Animals in the Mill River Watershed:

Common Name	Scientific Name	Rank
Wood Turtle	Clemmys insculpta	MA Special Concern
Spring Salamander	Gyrinophilus porphyriticus	MA Special Concern
Jefferson Salamander	Ambystoma jeffersonianum	MA Special Concern
Marbled Salamander	A. opacum	MA Threatened
Dwarf wedgemussel	Alasmidonta heterodon	MA & Federally Endangered
Eastern pond mussel	Ligumia nasuta	MA Special Concern
Squawfoot	Strophitus undulatus	MA Special Concern
Triangle floater	Alasmidonta undulata	MA Special Concern
Zebra Clubtail Dragonfly	Stylurus scudderi	MA Endangered
Spine-Crowned Clubtail	Gomphus abbreviatus	MA Endangered
Skillet Clubtail	Gomphus ventricosus	MA Special Concern
Stream Snaketail	Ophiogomphus aspersus	MA Special Concern
Umber Shadowdragon	Neurocordulia obsoleta	MA Special Concern

Rare Plant Species:

Seven state-listed plant species are presently known from the watershed:

Winged Monkey Flower (Mimulus alatus) (MA Endangered) grows along the muddy shores of the Mill River and its flood channels

Deergrass (Deschampsia cespitosa) (MA Endangered) occurred in one small floodplain area between Chestnut Street and the railroad tracks near C & S Wholesalers

Bush's Sedge

Bush's Sedge (Carex bushii) (MA Endangered) occurs in the Broad Brook drainage in Northampton (see image)

Green Dragon (Arisaema dracontium) ( MA Threatened) grows in the silver maple floodplain forest in Hatfield

Variegated Horsetail (Equisetum variegatum) (MA Special Concern) occurs in the Roaring Brook drainage

Fringed Gentian (Gentiana crinita) (MA Special Concern) occurs in the Roaring Brook drainage

American Ginseng (Panax quinquefolia) is known from a few localities in Whately and Hatfield

In addition, a small population of Floating Burreed (Sparganium fluctuans-Watch-Listed) was also observed in a wetland within The Rocks section of Hatfield.