E-Flora BC: Electronic Atlas of the Flora of British Columbia

Malaxis brachypoda (A. Gray) Fernald
white adder's-mouth orchid (one-leaved malaxis)
Orchidaceae (Orchid family)

Introduction to Vascular Plants

© David McAdoo  Email the photographer   (Photo ID #16275)

E-Flora BC Static Map
Distribution of Malaxis brachypoda
Click here to view the full interactive map and legend
Details about map content are available here
New! Click on the map dots to view record details.

Species Information

Click on the image below to view an expanded illustration for this species.



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.

Source: The Illustrated Flora of British Columbia

Habitat / 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.

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)

Site Information
Value / Class

Minimum

Average

Maximum

Elevation (metres) 390 640 890
Slope Gradient (%) 2 2 3
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
50 119 190
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
6 6 7
Modal Nutrient Regime
Class
D
Number 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)

Climate

The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Synonyms and Alternate Names

Malaxis monophyllos subsp. brachypoda (A. Gray) A. Löve & D. Löve
Malaxis monophyllos var. brachypoda (A. Gray) F. Morris & Eames

Taxonomic and Nomenclatural Links

Additional Photo Sources

Related Databases

General References