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

Torreyochloa pallida (Torr.) Church
Fernald's false manna (Fernald's alkaligrass; pale false mannagrass)
Poaceae (Grass family)

Introduction to Vascular Plants
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Distribution of Torreyochloa pallida
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Torreyochloa pallida var. pauciflora

Species Information

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Perennial grass from fibrous roots; stems slender, flaccid, sometimes somewhat decumbent, creeping at base, 30-100 cm tall.
Sheaths open; blades flat, 2-8 mm wide; ligules finely toothed, pointed, 1-1.5 mm long.
Inflorescence an open panicle, 5-20 cm long, the branches relatively few, eventually diffuse, 5-15 cm long; spikelets 4- to 6-flowered, narrowly egg-shaped, 4-7 mm long; glumes broadly rounded at the wax-papery tips; lemmas egg-shaped, sharply 7-nerved, finely hairy or minutely rough, eroded at the rounded tips, 2.5-3.5 mm long; paleas 4 to 5 times as long as wide; anthers about 1 mm long.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Shallow water, marshes, bogs and wet meadows in the montane zone; rare in EC BC; amphiberingian, N to NT, E to NF and S to ME, MA, PA, WV, MI, WI, MN and WY; E Asia.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Torreyochloa pallida

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




Elevation (metres) 890 890 890
Slope Gradient (%) 2 2 2
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
190 190 190
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
6 6 6
Modal Nutrient Regime
Number of field plots
 species was recorded in:
Modal BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in: SBS(1)


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

Glyceria pallida
Torreyochloa pallida subsp. pallida
Torreyochloa pallida subsp. pallida

Taxonomic and Nomenclatural Links

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General References