New York Natural Heritage Program
Fibrous Bladderwort
Utricularia striata LeConte ex Torrey
Dicots
Utricularia striata flower Stephen M. Young
Family: Bladderwort Family (Lentibulariaceae)

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: G4G5
A Global Rarity Rank of G4G5 means: Apparently or Demonstrably Secure globally - Uncommon to common in the world, but not rare; usually widespread, but may be rare in some parts of its range; possibly some cause for long-term concern due to declines or other factors. More information is needed to assign a single conservation status.


Did you know?
Some organisms like Euglena and some diatoms are able to survive and reproduce within the bladders of bladderworts without being digested. The movement of the bladder trapdoors to catch prey is the most rapid movement known among plants but its exact mechanism is still a mystery. This species is relatively easy to grow in the greenhouse (Schnell 2002).

State Ranking Justification [-]
There are eight existing populations and two of them consist of multiple, hydrologically connected ponds. There are five populations from the late 1800s and early 1900s which have not been resurveyed.

Short-term Trends [-]

Long-term Trends [-]