Native Orchids of the Ottawa Area

 

 

Species name

Common name

Flowering information

Amerorchis rotundifolia. 

Small Round-leaved Orchis.

Rare. Fens. Flowering in June and early July, peaking in mid to late June.

 

 

Aplectrum hyemale. 

Putty-root.

Extirpated. Forests. Flowering in June.

(Note – photo taken in Georgian Bay area).

 

 

Arethusa bulbosa. 

Arethusa, Dragon's Mouth.

Rare. Fens. Flowering in June.

 

 

Calopogon tuberosus. 

Grass-pink.

Sparse. Fens and Bogs. Flowering from mid June to early August peaking in July.

 

 

Calypso bulbosa. 

Calypso, Fairy Slipper.

Rare. Swamps. Flowering from mid May to early June peaking in late May.

 

 

Coeloglossum viride. 

Long-bracted Orchid.

Uncommon (Quebec), Rare (Ontario). Forests. Flowering in May to early July peaking in late May to late June.

 

Corallorhiza  maculata. 

Spotted Coral-root.

Uncommon (Quebec), Rare (Ontario). Forests.  Flowering from early June to late July peaking in July

(var. maculata f. flavida)

 

(var. maculata)

 

(var. occidentalis)

 

 

Corallorhiza striata. 

Striped Coral-root.

Sparse. Forests and swamps. Flowering from late May to late June peaking in late May to mid June.

 

 

Corallorhiza trifida. 

Early Coral-root.

Common. Swamps. Flowering from mid May to late June peaking in late May to mid June.

 

 

Cypripedium acaule. 

Pink Lady’s-slipper.

Common. Wet, moist and dry, acidic sites. Flowering from mid May to early July peaking in early to mid June.

   

 

Cypripedium arietinum. 

Ram’s-head Lady’s-slipper.

Sparse. Forests and fens. Flowering from mid May to mid June peaking in late May to early June.

 

 

Cypripedium parviflorum. 

Yellow Lady’s-slipper.

Uncommon. Forests , fens and swamps. Flowering from early May to early July peaking in June.

(var. pubescens)

 

(var. makasin)

 

 

Cypripedium reginae. 

Showy Lady’s Slipper.

Fens and swamps. Uncommon. Best seen in Purdon’s Fen. Flowering from late May to mid July, peaking in late June.

 

 

Epipactis helleborine. 

Broad-leaved Helleborine.

Forests. Introduced, widespread and common.  Flowering from mid June to late August peaking in mid July to mid August.

 

 

Galearis spectabilis. 

Showy Orchis.

Sparse. Forests. Flowering from mid May to mid June peaking in late May to early June.

 

Goodyera pubescens. 

Downy Rattlesnake-plantain.

Sparse (Quebec), Rare (Ontario). Forests and swamps.  Flowering from late July to mid September peaking in August.

 

 

Goodyera repens. 

Lesser Rattlesnake-plantain.

Sparse (Quebec), Rare (Ontario). Forests and swamps. Flowering from early July to late August peaking in late July to mid August.

 

 

Goodyera tesselata.

Tesselated Rattlesnake-plantain.

Sparse (Quebec), Rare (Ontario). Forests and swamps. Flowering from early July to late August, peaking in late July to mid August.

 

 

Liparis loeselii. 

Loesel’s Twayblade.

Common. Moist places. Flowering from mid June to late July, peaking in late June to early July.

 

 

Listera auriculata. 

Auricled Twayblade.

Rare. Stream edges. Flowering from mid June to early July.

 

 

Listera australis. 

Southern Twayblade.

Possibly Extirpated. Fens. Flowering from late May to mid June.

  

 

Listera cordata. 

Heart-leaved Twayblade.

Sparse. Swamps. Flowering from early June to mid July peaking in June.

  

 

Malaxis monophylla. 

White Adder’s-mouth.

Uncommon. Swamps. Flowering from early June to late July peaking in late June to mid July.

 

 

Malaxis unifolia. 

Green Adder’s-mouth.

Common. Varied conditions. Flowering from mid June to mid August peaking in July.

  

 

Platanthera aquilonis. 

Northern Green Orchid.

Common. Wet places. Flowering from mid June to mid August peaking in late June to mid  July.

 

 

Platanthera blephariglottis. 

White Fringed-orchid.

Rare. Poor fens. Flowering from early July to mid August peaking in mid July.

 

 

Platanthera clavellata.

Club-spur Orchid.

Sparse. Swamps and other moist places. Flowering from early July to mid August peaking in mid July to early August.

 

 

Platanthera dilatata. 

Fragrant White Orchid.

Rare. Fens. Flowering from early June to early August peaking in late June to mid July.

 

 

Platanthera flava. 

Northern Tubercled Orchid.

Rare. River flood plains. Flowering from July to early August peaking in July.

 

 

Platanthera grandiflora. 

Large Purple Fringed-orchid.

Sparse. Moist forests. Flowering from mid June to mid July peaking in late June to early July.

 

 

Platanthera hookeri. 

Hooker’s Orchid.

Sparse. Forests. Flowering from early May to mid July peaking in June.

 

 

Platanthera huronensis. 

Fragrant Green Orchid.

Sparse. Fens. Flowering from mid June to late July peaking in late June to mid July.

  

 

Platanthera lacera.

Ragged Fringed-orchid.

Rare (Quebec), Uncommon (Ontario). Moist open places. Flowering from late June to early August peaking in July.

 

 

Platanthera leucophaea.

Eastern Prairie Fringed-orchid.

Rare. Fens. Flowering from late June to late July peaking in July.

 

 

Platanthera macrophylla. 

Goldie’s Round-leaved Orchid.

Rare. Forests. Flowering from early July to early August peaking in July.

 

Platanthera obtusata. 

Blunt-leaved Orchid.

Uncommon (Quebec), Rare (Ontario). Swamps. Flowering from mid June to late July peaking in late June to mid July.

  

 

Platanthera orbiculata. 

Large Round-leaved Orchid.

Rare. Forests and swamps. Flowering from July to mid August peaking in mid July.

 

 

Platanthera psycodes. 

Small Purple Fringed-orchid.

Uncommon. Moist open or shaded places. Flowering from late June to mid August peaking in July.

 

 

Pogonia ophioglossoides. 

Rose Pogonia.

Sparse. Fens. Flowering from early June to mid August peaking in late June to mid July.

 

 

Spiranthes casei. 

Case’s Ladies’-tresses.

Sparse. Open fields and clearings. Flowering from mid August to late September peaking in late August to early September.

 

 

Spiranthes cernua. 

Nodding Ladies’-tresses.

Common. Moist open fields and clearings. Flowering in mid August to mid October peaking in September.

 

 

Spiranthes lacera

Northern Slender Ladies’-tresses.

Common. Open fields and clearings. Flowering in July and August peaking in mid July to mid August.

 

 

Spiranthes lucida. 

Shining Ladies’-tresses.

Rare. Rocky or sandy river shores. Flowering from late June to early July.

 

 

Spiranthes magnicamporum

Great Plains Ladies’-tresses

Rare. Prairie Dropseed alvar meadow. Flowering from mid September to early October, peaking in late September

 

 

Spiranthes romanzoffiana. 

Hooded Ladies’-tresses.

Sparse. Fens and other places. Flowering from early July to mid September peaking in late July to mid August.