New York Natural Heritage Program
Terrestrial Starwort
Callitriche terrestris Raf.
Dicots
Callitriche terrestris Troy Weldy
Family: Water-starwort Family (Callitrichaceae)

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 tiny little plant has often turned up in the wet tracks of logging roads and other constantly muddy areas. It has been theorized that these areas may be mimicking the trails of large extinct mammals like mastodons where this plant may have thrived in the past. The genus name means "beautiful hairs" and refers to the tiny threadlike stems.

State Ranking Justification [-]
There are 10 existing populations but all of them are small, only covering less than 30 square meters each. Since they occupy small disturbed areas they may not persist. There are only five historical records but with better knowledge of its habitat and a better search image this plant may be found more often.

Short-term Trends [-]

Long-term Trends [-]