longbract frog orchid

(Dactylorhiza viridis)

Conservation Status

 

No image available

 
  IUCN Red List

not listed

     
  NatureServe

NNR - Unranked

SNR - Unranked

     
  Minnesota

not listed

     
           
Wetland Indicator Status
     
  Great Plains

FACU - Facultative upland

     
  Midwest

FAC - Facultative

     
  Northcentral & Northeast

FAC - Facultative

     
           
 
Description
 
 

The stem has 2 to 6 alternate leaves, at least 1 of them clearly above the base. They wrap around (sheathe) the stem at the base, without a leaf stalk or stalk-like inflated sheath.

The modified leaf (bract) subtending each flower is 2 to 3 times longer than that flower. The long, strap-shaped lower petal (lip) has three forward-pointing teeth at the tip. The middle tooth is reduced and usually inconspicuous. The spur is inconspicuous. It is pouch shaped, 1 16 to (2 to 3 mm) long, and is tucked behind the lip. The mouth of the spur is covered by a membrane with a small opening.

 
     
 

Height

 
 

6 to 22

 
     
 

Flower Color

 
 

Greenish to yellowish, often tinged with purple or reddish-brown

 
     
 

Similar Species

 
     
     
 
Habitat
 
 

Moderately moist to wet. Open deciduous woodlands, shrubby woodland borders, and thickets.

 
     
 
Biology
 
 

Flowering

 
 

May 20 to August 10

 
     
 
Use
 
 

 

 
     
 
Distribution
 
 

Distribution Map

 

Sources

2, 3, 4, 5, 7, 25, 28, 29, 30.

The map at left includes historical records. Due to ongoing habitat loss, it may include counties where the longbract frog orchid is no longer found.

 
  4/15/2018      
         
 

Nativity

 
 

Native

 
         
 

Occurrence

 
 

Extremely widespread; common but declining

 
         
 
Taxonomy
 
  Kingdom Plantae (green algae and land plants)  
  Subkingdom Viridiplantae (green plants)  
  Infrakingdom Streptophyta (land plants and green algae)  
  Superdivision Embryophyta (land plants)  
  Division Tracheophyta (vascular plants)  
  Subdivision Spermatophytina (seed plants)  
  Class Liliopsida (monocots)  
 

Order

Asparagales (agaves, orchids, irises, and allies)  
 

Family

Orchidaceae (orchids)  
  Subfamily Orchidoideae  
  Tribe Orchideae  
 

Genus

Dactylorhiza (marsh orchids)  
       
 

Long-bract frog orchid was originally given the Latin name Satyrium viride by Carl Linnaeus in 1753. It was later transferred to the bog orchid genus with the name Habenaria viridis. Later, it was placed in the monotypic (containing only one species) genus Coeloglossum. Based on molecular DNA studies published in 1997, it was suggested that it be moved to the genus Dactylorhiza. This suggestion was controversial and not widely accepted outside of Brittan. Recently, an extensive review (Bateman & Rudall, 2017) of the morphology, the phylogeny, and the scientific evidence of the two species Dactylorhiza viridis and Dactylorhiza iberica and the genus Coeloglossum was published in the Kew Bulletin in 2018 (published online December 23, 2017). The authors concluded that “there is no question in our minds that the most appropriate taxonomic decision, based on extensive and diverse scientific evidence, is to retain both viridis and iberica within Dactylorhiza.” The former genus Coeloglossum is now obsolete, and the widely used name Coeloglossum viride is a synonym of Dactylorhiza viridis.

 
       
 

Synonyms

 
 

Coeloglossum bracteatum

Coeloglossum viride

Coeloglossum viride ssp. bracteatum

Coeloglossum viride var. islandicum

Coeloglossum viride var. virescens

Coeloglossum viride var. viride

Habenaria bracteata

Habenaria viridis

Habenaria viridis var. bracteata

Habenaria viridis var. interjecta

 
       
 

Common Names

 
 

bracted green orchid

bracted orchid

frog orchid

frog orchis

long-bract frog orchid

long-bract green orchis

long-bracted frog orchid

long-bracted orchid

longbract frog orchid

longbract orchid

 
       

 

 

 

 

 

 

 

 

Glossary

Bract

Modified leaf at the base of a flower stalk, flower cluster, or inflorescence.

 

Sheath

The lower part of the leaf that surrounds the stem. Verb: sheathe

 

Spur

On flowers: a hollow tubular appendage, often containing nectar, formed from a sepal or petal. On branches: a short shoot bearing leaves or flowers and fruit.

       
Visitor Photos
   

Share your photo of this plant.

This button not working for you?
Simply email us at info@MinnesotaSeasons.com.
Attach one or more photos and, if you like, a caption.

       
MinnesotaSeasons.com Photos
   
       
       
       

 

Camera

     
 
Slideshows
 
 
     
     
     

 

slideshow

       
Visitor Videos
       

Share your video of this plant.

This button not working for you?
Simply email us at info@MinnesotaSeasons.com.
Attach one or more videos or YouTube links and, if you like, a caption.

       
       
Other Videos
 
  Orchid pollination 18: Pollination of Dactylorhiza viridis by honeybees
Jean Claessens
 
   
 
About

Published on Feb 2, 2015

All species of Dactylorhiza are deceit-flowers: they do not produce any nectar. The only exception is Dactylorhiza viridis, which produces nectar at the lip base and in the spur. This is the first mention of Honeybees as pollinators of this orchid.

   
       
  Orchid pollination 22: Ant pollination of Dactylorhiza viridis by the ant Formica exsecta
Jean Claessens
 
   
 
About

Published on Mar 14, 2017

Ant pollination of orchids is very rare. Until now only one case was known. In the Dolomites (Italy) we observed how the frog orchid (Dactylorhiza viridis) was pollinated by the ant Formica exsecta

   
       
  Dactylorhiza viridis 1.mp4
Beppe Lobba
 
   
 
About

Published on Mar 7, 2016

Video del Centaurea Nigrescens Asteraceae: Fiordaliso nerastro - Seguici su www.traisassfiorii.it

   
       

 

Camcorder

         
Visitor Sightings
   

Report a sighting of this plant.

This button not working for you?
Simply email us at info@MinnesotaSeasons.com.
Be sure to include a location.

     
     
 
MinnesotaSeasons.com Sightings
   

 

 

Binoculars


Last Updated:

About Us | Privacy Policy | Contact Us | © 2022 MinnesotaSeasons.com. All rights reserved.