Introduction
Over the past several years, because of taxonomic studies, there have been a number of name changes for native orchids in North America. Several of these occur in Manitoba. I have compiled a list of the accepted scientific and common name for all species, varieties and forms of the orchids found in Manitoba.nd forms of the orchids found in Manitoba.
Lorne Heshka
Unless indicated otherwise, all photos in this section are by Lorne Heshka
Species Records
- Amerorchis rotundifolia (Banks) Hulten (Small round-leaved orchid)
- Amerorchis rotundifolia (Banks) Hulten forma lineata (Mousley) Hulten (Small round-leaved bog orchid – lined lip form)
- Arethusa bulbosa Linnaeus (Dragon’s-mouth)
- Calopogon tuberosus (Linnaeus) Britton, Sterns & Poggenberg var. tuberosus (Grass-pink)
- Calypso bulbosa (Linnaeus) Oakes var. americana (R.Brown) Luer (Eastern fairy-slipper)
- Coeloglossum viride (Linnaeus) Hartman var. virescens (Mulhenberg) Luer (Long bracted green orchid)
- Corallorhiza maculata (Rafinesque) Rafinesque var. maculata (Spotted coralroot)
- Corallorhiza maculata (Rafinesque) Rafinesque var. occidentalis (Lindley) Ames (Western spotted coralroot)
- Corallorhiza maculata (Rafinesque) Rafinesque var. occidentalis (Lindley) Ames – forma immaculata (Peck) Howell (Western spotted coralroot – yellow spotless form)
- Corallorhiza striata Lindley var striata (Striped coralroot)
- Corallorhiza trifida Chatelain (Early coralroot)
- Cypripedium acaule Aiton (Pink lady’s-slipper)
- Cypripedium acaule Aiton – forma albiflorum Rand & Redfield (Pink lady’s-slipper – white flowered form)
- Cypripedium arietinum R.Brown (Ram’s-head lady’s-slipper)
- Cypripedium candidum Mulhenberg ex Willdenow (Small white lady’s-slipper)
- Cypripedium parviflorum Salisbury var. makasin (Farwell) Sheviak (Northern small yellow lady’s-slipper)
- Cypripedium parviflorum Salisbury var. pubescens (Willdenow) Knight (Large yellow lady’s-slipper)
- Cypripedium passerinum Rishardson var. passerinum (Sparrow’s egg lady’s-slipper, or Franklin’s lady’s-slipper)
- Cypripedium reginae Walter (Showy lady’s-slipper)
- Cypripedium reginae Walter – forma albolabium Fernald & Schubert (Showy lady’s-slipper – white flowered form)
- Goodyera repens (Linnaeus) R.Brown (Lesser rattlesnake orchid)
- Goodyera tesselata Loddiges (Checkered rattlesnake orchid)
- Liparis loeselii (Linnaeus) L.C.Richard (Loesel’s twayblade)
- Listera auriculata Wiegand (Auricled twayblade)
- Listera borealis Morong (Northern twayblade)
- Listera cordata (Linnaeus) R.Brown var. cordata (Heart-leaved twayblade)
- Malaxis monophyllos var brachypoda (Gray) Fernald (White adder’s-mouth)
- Malaxsis paludosa (Linnaeus) Swartz (Bog adder’s-mouth)
- Malaxsis unifolia Michaux (Green adder’s-mouth)
- Platanthera aquilonis Sheviak (formerly Platanthera hyperborea (Linnaeus) Lindley (Northern green bog orchid)
- Platanthera dilatata (Pursh) Lindley var. dilatata (Tall white northern bog orchid)
- Platanthera hookeri (Torrey) Lindley (Hooker’s orchid)
- Platanthera huronensis (Nuttall) Lindley (Tall Northern Green Orchid)
- Platanthera lacera (Michaux) G. Don (Green fringed orchid; ragged orchid)
- Platanthera obtusata (Banks ex Pursh) Lindley (Blunt-leaved rein orchid)
- Platanthera obtusata (Banks ex Pursh) Lindley – forma collectanea (Fernald) P.M. Brown (Blunt-leaved rein orchid – dwarfed form)
- Platanthera obtusata (Banks ex Pursh) Lindley – forma foliosa P.M. Brown (Blunt-leaved rein orchid – multiple-leaved form)
- Platanthera orbiculata (Pursh) Lindley (Pad-leaved orchid)
- Platanthera praeclara Sheviak & Bowles (Western prairie fringed orchid)
- Platanthera psycodes (Linnaeus) Lindley (Small purple fringed orchid)
- Pogonia ophioglossoides (Linnaeus) Ker-Gawler var. ophioglossoides (Rose pogonia)
- Spiranthes lacera Rafinesque var. lacera (Northern slender ladies’-tresses)
- Spiranthes magnicamporum Sheviak (Great plains ladies’-tresses)
- Spiranthes romanzoffiana Chamisso (Hooded ladies’-tresses)
