Malaxis brachypoda (Gray) Fern.
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TAXONOMY
 
Family: Orchidaceae
Genus: Malaxis
 
Species Synonyms: Malaxis monophyllos ssp. brachypoda (Gray) A.&D. Löve
Malaxis monophyllos var. brachypoda (Gray) F. Morris & Eames
Common Names: white adder’s-mouth orchid
 
DISTRIBUTION
 
Canada: British Columbia – Alberta – south western and central Saskatchewan – Manitoba – Ontario – Quebec – Newfoundland – Nova Scotia
Saskatchewan: central to southern Saskatchewan; Cypress Hills – Strawberry Lake – Pasquia Hills – Dore Lake
Ecoregion: Cypress Upland, Moist Mixed Grassland, Aspen Parkland, Boreal Transition, Mid-Boreal Upland
 
HABITAT
 
Saskatchewan: moist, shaded coniferous woods
Canada: damp woods and calcareous bogs
 
RARITY STATUS
 
Provincial Status According
to Harms (2003):
Vulnerable
Nature Conservancy Status:
G4 S1S2
Saskatchewan Species at
Risk Status:
None
COSEWIC Status:
None
 
White adder’s-mouth orchid is vulnerable because it is rare or uncommon in Saskatchewan. Most local populations are small. Possible threats, including habitat loss, have been identified for this species.
 
SPECIES DESCRIPTION
 
Height: 3 – 30 cm
Roots: underground corms
Stems: swelling at base; erect
Leaves: blades 1 or rarely 2, basal or inserted near the middle of stem, 2 – 8 cm long, 1 – 5 cm wide, oval to elliptic, light green; stalk sheathing stem
Inflorescence: unbranched, slender; floral bracts 1 – 2 mm long, lance-shaped; pedicels 2 – 5 mm long
Flowers: upside down, small; sepals and petals less than 3 mm long, green or whitish; dorsal sepal oval to lance-shaped, tip tapered to a long point, margin rolled; lateral sepals oblong, slightly sickle-shaped, tip tapered to a long point; petals strongly reflexed, thread-like to linear, tip rounded; lip reflexed, triangular, 3-lobed, lateral lobes with ear-like lobes, thickened
Fruits:
 
MALAXIS KEY FOR SPECIES FOUND IN SASKATCHEWAN
 
1 Leaf solitary, basal or inserted near the middle of the stem; lip reflexed; flowers upside down
M. brachypoda
1 Leaves 2 – 5, basal; lip erect; flowers right side up
M. paludosa