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

Scolochloa festucacea (Willd.) Link
rivergrass (common rivergrass)
Poaceae (Grass family)

Introduction to Vascular Plants

© Jamie Fenneman  Email the photographer   (Photo ID #19747)

E-Flora BC Static Map
Distribution of Scolochloa festucacea
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Species Information

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General:
Perennial grass from stout rhizomes; stems 100-150 cm tall.
Leaves:
Sheaths open, strongly keeled, usually smooth; blades flat, firm, elongate, 5-10 mm wide, narrowed gradually to slender tips; ligules 2-6 mm long, jagged.
Flowers:
Inflorescence an open panicle, 15-25 cm long, the branches mostly smooth below midlength, ascending; spikelets 3- to 4-flowered; lower glumes 4-6 mm long, the upper ones 5-7 mm long, awnless; lemmas about 6 mm long, 7-nerved; calluses bearded; anthers 3-4 mm long.

Source: The Illustrated Flora of British Columbia

USDA Species Characteristics

Flower Colour:
Green
Blooming Period:
Late Summer
Source:  The USDA

Habitat / Range

Ponds, marshes, lakeshores and streamsides in the steppe and montane zones; rare in EC, SC and SE BC; N to AK, YT and NT, E to SK and S to IA, KS, MT, ID and OR.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Scolochloa festucacea

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) 540 1068 1690
Slope Gradient (%) 0 4 32
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
18 352 235
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
1 6 8
Modal Nutrient Regime
Class
D
Number of field plots
 species was recorded in:
13
Modal BEC Zone Class
IDF
All BEC Zones (# of stations/zone) species was recorded in: BG(1), ESSF(1), ICH(1), IDF(8), MS(1), PP(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

Arundo festucacea Willd.
Fluminea festucacea
Fluminia festucacea (Willd.) Hitchc.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References