New York Natural Heritage Program
Spotted Pondweed
Potamogeton pulcher Tuckerman
Monocots
Potamogeton pulcher Troy Weldy
Family: Pondweed Family (Potamogetonaceae)

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?
There are seven historical records from Long Island for this pondweed but it has not been documented there since 1952 when it was collected at Riverhead. There are a number of known locations in the Hudson Highlands though. The specific name means handsome since it is more colorful than most pondweeds.

State Ranking Justification [-]
There are approximately ten known populations and nearly 25 historical locations for the aquatic plant. As an aquatic plant, it may be subject to changes in water chemistry, aquatic herbicides, intensive recreational boating, and invasive species. Long Island has experienced a substational decline of this plant. More populations might be found, but there also a few populations with low predicted viability.

Short-term Trends [-]

Long-term Trends [-]