New York Natural Heritage Program
Nodding Pogonia
Triphora trianthophora (Sw.) Rydb.
Triphora trianthophora Alfred Schotz
Family: Orchid Family (Orchidaceae)

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: G3G4
A Global Rarity Rank of G3G4 means: Vulnerable globally, or Apparently Secure -- At moderate risk of extinction, with relatively few populations or locations in the world, few individuals, and/or restricted range; or uncommon but not rare globally; 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?
A population of this orchid was recently found in Cayuga County at the exact spot where it was previously collected in 1919. It may be underreported in the state because the time when it is blooming and visible is so short (typically the whole population flowers synchronously, and flowers last only one day) and it may not bloom every year. The flowers do not have nectar and may bloom all at once to ensure pollination before the pollinators learn to avoid flowers with no reward. According to one botanist, this synchronicity apparently extends over great areas, because during 1990 Triphora was observed flowering on the exact same day in New Hampshire, Maine, and Massachusetts.

State Ranking Justification [-]
There are nine existing populations but two of them are small. This plant is very difficult to survey because of the limited time it blooms so it is expected that more populations will be found. There are 37 historical populations.

Short-term Trends [-]

Long-term Trends [-]