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

Deschampsia elongata (Hook.) Munro
slender hairgrass
Poaceae (Grass family)

Introduction to Vascular Plants

© Hans Roemer  Email the photographer   (Photo ID #22959)

E-Flora BC Static Map
Distribution of Deschampsia elongata
Click here to view our interactive map and legend
Details about map content are available here
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, tufted grass from fibrous roots; stems numerous, slender, (10) 25-80 (100) cm tall.
Leaves:
Sheaths open, usually smooth; blades smooth to more or less rough short-hairy, the basal leaves tufted, the blades threadlike, flat or folded or sometimes in-rolled, mostly only 2-4 cm long, but rarely over 1.5 mm wide, the stem blades sometimes flat; ligules entire but usually split, short-hairy, sharp- to long-pointed, 3-9 mm long.
Flowers:
Inflorescence a narrow, pale greenish to purple panicle, 5-30 cm long, the slender branches ascending-erect; glumes 3-nerved, long-pointed, nearly equal, equalling or exceeding the upper florets; rachilla joints with hairs about as long as the calluses; lemmas firm, smooth, shining, often more or less rough short-hairy, (2) 2.5 (3) mm long, the tips blunt, jagged, awned from just below midlength, the awns nearly straight, about 3-4 mm long, the calluses with hairs half as long as the lemmas; paleas nearly equal to the lemmas; lodicules lanceolate, entire, 0.1-0.2 mm long; anthers about 0.5 mm long.

Source: The Illustrated Flora of British Columbia

USDA Species Characteristics

Flower Colour:
Yellow
Blooming Period:
Late Spring
Fruit/Seed characteristics:
Colour: Brown
Present from Spring to Summer
Source:  The USDA

Habitat / Range

Moist to mesic streambanks, shorelines, open forests, clearings and meadows from the lowland to alpine zones; frequent in S BC; N to AK and S YT, E to SW AB and S to NM, AZ, MX and CA.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Deschampsia elongata

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) 110 614 2080
Slope Gradient (%) 0 9 50
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
5 224 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 4 7
Modal Nutrient Regime
Class
C
Number of field plots
 species was recorded in:
68
Modal BEC Zone Class
CWH
All BEC Zones (# of stations/zone) species was recorded in: CWH(39), ESSF(5), ICH(2), IDF(1), MH(1), MS(4), SBPS(1), SBS(5)

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 cool temperate & cool mesothermal.

Synonyms and Alternate Names

Aira elongata Hook.
Deschampsia ciliata

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References