CalypsoCalypso bulbosa var. americana(R. Br. ex Ait. f.) Luer
Class
Monocotyledoneae (Monocots)
Family
Orchidaceae (Orchid Family)
State Protection
Endangered
Listed as Endangered by New York State: in imminent danger of extirpation in New York. For animals, taking, importation, transportation, or possession is prohibited, except under license or permit. For plants, removal or damage without the consent of the landowner is prohibited.
Federal Protection
Not Listed
State Conservation Status Rank
SH
Historical (Possibly extirpated) in New York - Missing from New York; known only from historical records (more than 30 years ago), but still some possibility of rediscovery upon further searching.
Global Conservation Status Rank
G5T5
Secure globally - Both the species as a whole and the subspecies/variety are common in the world; widespread and abundant (but may be rare in some parts of its range).
There are no verified occurrences, 10 historical occurrences.
Conservation and Management
Habitat
Habitat
This orchid has not been seen in New York since 1969, and was likely never very abundant in the state. There are historical records from bogs, Northern White-cedar swamps, and the edges of Hemlock swamps (New York Natural Heritage Program 2011). Mesic to wet coniferous forests, mixed forests, and bogs (FNA 2002a).
A conifer forest that occurs on acidic peatlands in cool, poorly drained depressions. The characteristic trees are black spruce and tamarack; in any one stand, either tree may be dominant, or they may be codominant. Canopy cover is quite variable, ranging from open canopy woodlands with as little as 20% cover of evenly spaced canopy trees to closed canopy forests with 80 to 90% cover.
* probable association but not confirmed.
A wetland usually fed by rainwater or mineral-poor groundwater and dominated by short, evergreen shrubs and peat mosses. The surface of the peatland is usually hummocky, with shrubs more common on the hummocks and peat moss throughout. The water in the bog is usually nutrient-poor and acidic.
* probable association but not confirmed.
A swamp that occurs on mineral soils and deep muck in depressions which receive groundwater discharge. These swamps usually have a fairly closed canopy (70 to 90% cover), sparse shrub layer, and low species diversity. The tree canopy is typically dominated by eastern hemlock and co-dominated by yellow birch and red maple.
* probable association but not confirmed.
A swamp that occurs on organic soils in cool, poorly drained depressions in central and northern New York, and along lakes and streams in the northern half of the state. These swamps are often spring-fed with continually saturated soils. Soils are often rich in calcium. The characteristic tree is northern white cedar, which makes up more than 30% of the canopy cover.
* probable association but not confirmed.
A wetland of mostly grasses usually fed by water from highly calcareous springs or seepage. These waters have high concentrations of minerals and high pH values, generally from 6.0 to 7.8. Plant remains do not decompose rapidly and these grasses usually grow on older, undecomposed plant parts.
* probable association but not confirmed.
A wetland with many shrubs that is usually fed by water from springs and seeps. These waters have high concentrations of minerals and high pH values, generally from 6.0 to 7.8. Plant remains in these fens do not decompose rapidly and thus the plants in these fens usually grow on older, undecomposed woody plant parts.
* probable association but not confirmed.
Associated Species
Larix laricina (tamarack)
Thuja occidentalis (northern white cedar, arbor vitae)
Tsuga canadensis (eastern hemlock)
Range
New York State Distribution
Historically known from 9 counties, New York is at southeast limit of range, Vermont has extant populations.
Identification Comments
Best Time to See
The best time to survey for Calypso is when it is flower, normally late May through early June in New York.
Vegetative
Flowering
Fruiting
The time of year you would expect to find Calypso vegetative, flowering, and fruiting in New York.
Taxonomy
Calypso Calypso bulbosa var. americana (R. Br. ex Ait. f.) Luer
Kingdom Plantae
Phylum Anthophyta
Class Monocotyledoneae
(Monocots)
Order Orchidales
Family Orchidaceae
(Orchid Family)
Additional Common Names
Fairyslipper
Synonyms
Cytherea bulbosa
(L.) House
Additional Resources
References
Flora of North America Editorial Committee. 2002a. Flora of North America North of Mexico. Vol. 26. Magnoliophyta: Liliidae: Liliales and Orchidales. Oxford Univ. Press, New York. xxvi + 723 pp.
Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. The New York Botanical Garden, Bronx, New York. 910 pp.
Holmgren, Noel. 1998. The Illustrated Companion to Gleason and Cronquist's Manual. Illustrations of the Vascular Plants of Northeastern United States and Adjacent Canada. The New York Botanical Garden, Bronx, New York.
Mitchell, Richard S. and Gordon C. Tucker. 1997. Revised Checklist of New York State Plants. Contributions to a Flora of New York State. Checklist IV. Bulletin No. 490. New York State Museum. Albany, NY. 400 pp.
New York Natural Heritage Program. 2023. New York Natural Heritage Program Databases. Albany, NY.
Weldy, T. and D. Werier. 2010. New York flora atlas. [S.M. Landry, K.N. Campbell, and L.D. Mabe (original application development), Florida Center for Community Design and Research http://www.fccdr.usf.edu/. University of South Florida http://www.usf.edu/]. New York Flora Association http://newyork.plantatlas.usf.edu/, Albany, New York
Information for this guide was last updated on:
August 9, 2011
Please cite this page as:
New York Natural Heritage Program. 2023.
Online Conservation Guide for
Calypso bulbosa var. americana.
Available from: https://guides.nynhp.org/calypso/.
Accessed June 6, 2023.