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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SUBTAXA PRESENT IN BC
Torreyochloa pallida var. pauciflora

Species Information

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General:
Perennial grass from fibrous roots; stems slender, flaccid, sometimes somewhat decumbent, creeping at base, 30-100 cm tall.
Leaves:
Sheaths open; blades flat, 2-8 mm wide; ligules finely toothed, pointed, 1-1.5 mm long.
Flowers:
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

Ecology

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

Minimum

Average

Maximum

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
Class
B
Number of field plots
 species was recorded in:
2
Modal BEC Zone Class
SBS
All BEC Zones (# of stations/zone) species was recorded in: 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

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

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References