Amerorchis rotundifolia (Banks) Hulten
photo courtesy of Terry Blackburn Forma:
- ..angustifolia Rousseau - narrow-leaf form
- ..beckettiae (Boivin) Hulten - white-flowered form
- ..immaculata Mazurski & L.P. Johnson - white-lipped form
- ..lineata (Mousley) Hulten - lined-lip form
Synonyms:
- Orchis rotundifolia Banks ex Pursh
- Habenaria rotundifolia (Banks) Richardson in Franklin
- Platanthera rotundifolia (Banks) Lindley
- Common name: Small Round-leaved Orchis, One-leaf Orchis
- Plant: terrestrial, to 35cm, single ovate basal leave
- Flowers: raceme with up to 15 white to pale pink flowers, red/mauve
spotting on a three lobed lip
- Bloomtimes: May to August
- Habitat: limestone barrens and open tundra, coniferous forests,
bogs, moors
- Comments: rare in the eastern U.S., but abundant in northwestern
continent
- Distribution Range: Alaska to Newfoundland south to Montana,
Wyoming; Minnesota to Maine, Greenland
Links to Other Images:
Links to Other Treatments:
- Orchids
of Wisconsin - by Jeff Hapeman
Links to Herbaria Accessions:
References:
- The Native Orchids of the United States and Canada Excluding Florida;
Carlyle A. Luer; The New York Botanical Garden; pg. 152
- Native Orchids of N. America North of Mexico; Donovan Stewart
Correll; Stanford University Press 1950, 1978; pg. 44
- Field Guide to Orchids of North America; John G. Williams &
Andrew E. Williams; Universe Books 1983; pg. 32, 33
- Orchids of Minnesota; Welby R. Smith; Minn. Dept. of Natural
Resources 1993; pg. 29
- Brown, P.M. 1995. NA Native Orchid Journal 1(2): 132
- A new color form of Amerorchis rotundifolia from the Sibley Peninsula
of L. Superior; Johnson, L.P. 1995. Lindleyana 10(1): 1
- Orchis rotundifolia; B. Boivin, Naturaliste Canad. 1960 87:42
- A new orchid record for Ontario; H. V. Elliott; Fed. Ontario
Naturalists Bull. 88: 18-20
- A new locality for Orchis rotundifolia var. lineata; H. V. Elliott;
Rhodora 62: 174
- Orchids of the Western Great Lakes Region; F.W. Case, Jr.; Cranbrook
Institute of Science 1987; pg. 85-88
- Orchids of Ontario; R.E. Whiting & P.M. Catling; CanaColl
Foundation 1986: pg. 35
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photo courtesy of Terry Blackburn