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Species Details
Coeloglossum viride (L.) Hart.
University of Alberta Vascular Plant Herbarium Read more about this collection »
LeavesAlternate, inversely heart-shaped to inversely lance-shaped, 2-18 cm long, 1-7 cm wide
FlowersInflorescence a raceme; flowers 7-70, bilaterally symmetric; sepals 3, fused, egg-shaped, 3-8 mm long, 2-5 mm wide, form hood over the column; lateral petals 2, linear to lance-shaped, 3-5 mm long, 0.5 mm wide, green, red or brown; lip 3-10 mm long, 0.5-4 mm wide, wedge-shaped to oblong, 2-or 3-toothed at tip; spur pouch-like, 2-3 mm long; stamens 1-2, fused with pistil to form column; ovary inferior
Fruits and SeedsCapsule, 7-14 mm long, 4-5 mm wide, ellipsoid, 3-valved; seeds 20-40 million, dust like, 0.05-6 mm long, 0.01-9 mm wide, tubular or balloon-shaped
Scientific Name
Coeloglossum viride (L.) Hart.
Common Name
frog orchid, bog orchid, long bracted orchid, American frog orchid, bracted orchid, green-bracted orchid, long-bract frog orchid, long-bract orchis
General Description
Perennial herb, fleshy roots, stems 6-80 cm tall, smooth
Leaves
Alternate, inversely heart-shaped to inversely lance-shaped, 2-18 cm long, 1-7 cm wide
Flowers
Inflorescence a raceme; flowers 7-70, bilaterally symmetric; sepals 3, fused, egg-shaped, 3-8 mm long, 2-5 mm wide, form hood over the column; lateral petals 2, linear to lance-shaped, 3-5 mm long, 0.5 mm wide, green,…
Inflorescence a raceme; flowers 7-70, bilaterally symmetric; sepals 3, fused, egg-shaped, 3-8 mm long, 2-5 mm wide, form hood over the column; lateral petals 2, linear to lance-shaped, 3-5 mm long, 0.5 mm wide, green, red or brown; lip 3-10 mm long, 0.5-4 mm wide, wedge-shaped to oblong, 2-or 3-toothed at tip; spur pouch-like, 2-3 mm long; stamens 1-2, fused with pistil to form column; ovary inferior
Fruits and Seeds
Capsule, 7-14 mm long, 4-5 mm wide, ellipsoid, 3-valved; seeds 20-40 million, dust like, 0.05-6 mm long, 0.01-9 mm wide, tubular or balloon-shaped
Phenology
Flowers from June to July
Notes
The name Coeloglossum comes from the Greek words koilos and glossum, which means “hollow tongue.” The name referes to the spur. The species name viride, meaning “greenish,” refers to the green flowers.
Range/Distribution
Alberta: Throughout the whole province
CAN (BC, MB, NB, NF, NS, NT, ON, PE, QC, SK, YT); USA (AK, AZ, CO, CT, IA, IL, IN, KY, MA, MD, ME, MI, MN, MO, MT, NC, ND, NE, NH, NJ, NM, NY, OH, PA, RI, SD, TN, UT, VA, VT, WA,…
Alberta: Throughout the whole province
CAN (BC, MB, NB, NF, NS, NT, ON, PE, QC, SK, YT); USA (AK, AZ, CO, CT, IA, IL, IN, KY, MA, MD, ME, MI, MN, MO, MT, NC, ND, NE, NH, NJ, NM, NY, OH, PA, RI, SD, TN, UT, VA, VT, WA, WI, WV, WY)
Citation
Page Citation for Coeloglossum viride (L.) Hart.
Page Citation
"Species Details - Coeloglossum viride (L.) Hart., University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search-test.museums.ualberta.ca/g/1-4640/12-15450. Accessed 30 Sep. 2025.
Specimen Information
There are 86 specimens of this Species.
104646 - Coeloglossum viride (L.) Hart.
University of Alberta Vascular Plant Herbarium
Common Namefrog orchid, bog orchid, long bracted orchid, American frog orchid, bracted orchid, green-bracted orchid, long-bract frog orchid, long-bract orchis
Place CollectedNorth America: Canada, Alberta, Willmore Wilderness Park, Adams Creek
Date Collected1976-08-08
105043 - Coeloglossum viride (L.) Hart.
University of Alberta Vascular Plant Herbarium
Common Namefrog orchid, bog orchid, long bracted orchid, American frog orchid, bracted orchid, green-bracted orchid, long-bract frog orchid, long-bract orchis
Place CollectedNorth America: Canada, Northwest Territories, Fort Smith
Date Collected1965-07-14
108159 - Coeloglossum viride (L.) Hart.
University of Alberta Vascular Plant Herbarium
Common Namefrog orchid, bog orchid, long bracted orchid, American frog orchid, bracted orchid, green-bracted orchid, long-bract frog orchid, long-bract orchis
Place CollectedNorth America: Canada, Alberta, Livingstone Range
Date Collected1982-06-24
104227 - Coeloglossum viride (L.) Hart.
University of Alberta Vascular Plant Herbarium
Common Namefrog orchid, bog orchid, long bracted orchid, American frog orchid, bracted orchid, green-bracted orchid, long-bract frog orchid, long-bract orchis
Place CollectedNorth America: Canada, Alberta, Whitehorse Wildland Park, Cardinal Divide
Date Collected1983-08-04
5398 - Coeloglossum viride (L.) Hart.
University of Alberta Vascular Plant Herbarium
Common Namefrog orchid, bog orchid, long bracted orchid, American frog orchid, bracted orchid, green-bracted orchid, long-bract frog orchid, long-bract orchis
Place CollectedNorth America: Canada, Alberta, Cypress Hills
Date Collected1945-07-05
37399 - Coeloglossum viride (L.) Hart.
University of Alberta Vascular Plant Herbarium
Common Namefrog orchid, bog orchid, long bracted orchid, American frog orchid, bracted orchid, green-bracted orchid, long-bract frog orchid, long-bract orchis
Place CollectedNorth America: Canada, Alberta, Coliseum Mountain
Date Collected1945-08-14
24298 - Coeloglossum viride (L.) Hart.
University of Alberta Vascular Plant Herbarium
Common Namefrog orchid, bog orchid, long bracted orchid, American frog orchid, bracted orchid, green-bracted orchid, long-bract frog orchid, long-bract orchis
Place CollectedNorth America: Canada, Alberta, Miles Coulee
Date Collected1955-06-29
5399 - Coeloglossum viride (L.) Hart.
University of Alberta Vascular Plant Herbarium
Common Namefrog orchid, bog orchid, long bracted orchid, American frog orchid, bracted orchid, green-bracted orchid, long-bract frog orchid, long-bract orchis
Place CollectedNorth America: Canada, Alberta, Pincher Creek
5403 - Coeloglossum viride (L.) Hart.
University of Alberta Vascular Plant Herbarium
Common Namefrog orchid, bog orchid, long bracted orchid, American frog orchid, bracted orchid, green-bracted orchid, long-bract frog orchid, long-bract orchis
Place CollectedNorth America: Canada, Alberta, Glidehurst
Date Collected1929-06-15
5404 - Coeloglossum viride (L.) Hart.
University of Alberta Vascular Plant Herbarium
Common Namefrog orchid, bog orchid, long bracted orchid, American frog orchid, bracted orchid, green-bracted orchid, long-bract frog orchid, long-bract orchis
Place CollectedNorth America: Canada, Alberta, Jasper National Park
Date Collected1939-06-11
5405 - Coeloglossum viride (L.) Hart.
University of Alberta Vascular Plant Herbarium
Common Namefrog orchid, bog orchid, long bracted orchid, American frog orchid, bracted orchid, green-bracted orchid, long-bract frog orchid, long-bract orchis
Place CollectedNorth America: Canada, Alberta, Calgary
Date Collected1946-06-14
5401 - Coeloglossum viride (L.) Hart.
University of Alberta Vascular Plant Herbarium
Common Namefrog orchid, bog orchid, long bracted orchid, American frog orchid, bracted orchid, green-bracted orchid, long-bract frog orchid, long-bract orchis
Place CollectedNorth America: Canada, Alberta, Banff National Park
Date Collected1923-06-25
5402 - Coeloglossum viride (L.) Hart.
University of Alberta Vascular Plant Herbarium
Common Namefrog orchid, bog orchid, long bracted orchid, American frog orchid, bracted orchid, green-bracted orchid, long-bract frog orchid, long-bract orchis
Place CollectedNorth America: Canada, Alberta, Banff National Park, Stoney Squaw Mountain
Date Collected1923-06-30
5406 - Coeloglossum viride (L.) Hart.
University of Alberta Vascular Plant Herbarium
Common Namefrog orchid, bog orchid, long bracted orchid, American frog orchid, bracted orchid, green-bracted orchid, long-bract frog orchid, long-bract orchis
Place CollectedNorth America: Canada, Alberta, Kleskun Hill
Date Collected1948-06-16
21691 - Coeloglossum viride (L.) Hart.
University of Alberta Vascular Plant Herbarium
Common Namefrog orchid, bog orchid, long bracted orchid, American frog orchid, bracted orchid, green-bracted orchid, long-bract frog orchid, long-bract orchis
Place CollectedNorth America: Canada, Alberta, Jasper National Park, Pyramid Lake
Date Collected1965-08-06
41515 - Coeloglossum viride (L.) Hart.
University of Alberta Vascular Plant Herbarium
Common Namefrog orchid, bog orchid, long bracted orchid, American frog orchid, bracted orchid, green-bracted orchid, long-bract frog orchid, long-bract orchis
Place CollectedNorth America: Canada, Alberta, Waterton Lakes National Park, Dardanelles
Date Collected1967-07-03
40600 - Coeloglossum viride (L.) Hart.
University of Alberta Vascular Plant Herbarium
Common Namefrog orchid, bog orchid, long bracted orchid, American frog orchid, bracted orchid, green-bracted orchid, long-bract frog orchid, long-bract orchis
Place CollectedNorth America: Canada, Alberta, Jasper National Park, Celestine Lake
Date Collected1970-06-08
39317 - Coeloglossum viride (L.) Hart.
University of Alberta Vascular Plant Herbarium
Common Namefrog orchid, bog orchid, long bracted orchid, American frog orchid, bracted orchid, green-bracted orchid, long-bract frog orchid, long-bract orchis
Place CollectedNorth America: Canada, Alberta, Beaverlodge Research Station
Date Collected1971-06-28
5400 - Coeloglossum viride (L.) Hart.
University of Alberta Vascular Plant Herbarium
Common Namefrog orchid, bog orchid, long bracted orchid, American frog orchid, bracted orchid, green-bracted orchid, long-bract frog orchid, long-bract orchis
Place CollectedNorth America: Canada, Alberta, Banff National Park, Mount Norquay
Date Collected1916-07-03
21382 - Coeloglossum viride (L.) Hart.
University of Alberta Vascular Plant Herbarium
Common Namefrog orchid, bog orchid, long bracted orchid, American frog orchid, bracted orchid, green-bracted orchid, long-bract frog orchid, long-bract orchis
Place CollectedNorth America: Canada, Alberta, Vermilion
Date Collected1956-06-09
21237 - Coeloglossum viride (L.) Hart.
University of Alberta Vascular Plant Herbarium
Common Namefrog orchid, bog orchid, long bracted orchid, American frog orchid, bracted orchid, green-bracted orchid, long-bract frog orchid, long-bract orchis
Place CollectedNorth America: Canada, Alberta, Fort Saskatchewan
Date Collected1950-06-20