Malaxis brachypoda (A. Gray) Fernald
white adder's-mouth orchid (one-leaved malaxis)
Orchidaceae (Orchid family)
Introduction to Vascular Plants
white adder's-mouth orchid (one-leaved malaxis)
Orchidaceae (Orchid family)
Introduction to Vascular Plants
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Species Information
General:
Perennial herb from bulblike bases (corms) to 8 mm across, with a few fibrous roots; stems 10-20 cm tall, leafless, smooth, pale green.
Leaves:
One, near base, egg-shaped to elliptic, 2-10 cm long, 2-5 cm wide, light green, keeled on back, the sheathing stalk 2-3 cm long.
Flowers:
Inflorescence a loosely-flowered, terminal, spikelike raceme, the flowers small, greenish-white, the flower stalks about 2.5 mm long; bracts about 1.5 mm long, lanceolate; sepals 1-2 mm long, the upper erect, narrowly egg-shaped, the lateral 2 narrowly lanceolate, somewhat curved behind the lip; petals 1-2 mm long, linear, bent back, pointed at tips; lip 2 mm long and wide, drooping downward, broadly triangular, the base heart-shaped, the tip beaked; column less than 1 mm long.
Fruits:
Capsules, ellipsoid, erect, to 5 mm long.
Illustration
If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.
Illustration Source: The Illustrated Flora of British Columbia
Ecology
Ecological Framework for Malaxis brachypoda
The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)
The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)
| Site Information |
Value / Class |
||
|
Avg |
Min |
Max |
|
| Elevation
(metres) |
640 | 390 | 890 |
| Slope
Gradient (%) |
2 | 2 | 3 |
|
Aspect (degrees) |
119 | 50 | 190 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
6 | 6 | 7 |
| Modal
Nutrient Regime
Class |
D | ||
| #
of field plots species was recorded in: |
2 | ||
| Modal
BEC Zone Class |
SBS | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
CWH(1), SBS(1) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Moist forests, mudflats, fens and streambanks in the lowland and montane zones; rare in coastal and N BC; N to AK, E to NF and S to ME, MA, PA, IN, IL, MN and disjunct in CO and CA; Japan.Status Information
Synonyms
Synonyms and Alternate Names:
Malaxis monophyllos subsp. brachypoda (A. Gray) A. Löve & D. Löve
Malaxis monophyllos var. brachypoda (A. Gray) F. Morris & Eames