Agoseris glauca (Pursh) Raf.
short-beaked agoseris (pale agoseris; Prairie agoseris)
Asteraceae (Aster family)

Introduction to Vascular Plants

Photograph

© Adolf Ceska     (Photo ID #5911)

Map

E-Flora BC Static Map

Distribution of Agoseris glauca
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Species Information

General:
Perennial from a long, heavy taproot; stems leafless, 1-several, exuding milky juice when broken, 10-70 cm tall.
Leaves:
All basal, extremely variable, linear to broadly lanceolate, 5-35 cm long, 1-30 mm wide, entire or toothed to laciniate-pinnatifid or few lobed, glaucous or glabrous or sparsely hairy on the margins and midribs below.
Flowers:
Heads with strap-shaped flowers, solitary; involucres narrowly bell-shaped, 1-3 cm tall; involucral bracts graduated or subequal, lanceolate, attenuate or sometimes obtuse, frequently purple-margined, glabrous, the outer series shorter; receptacles naked; ray flowers yellow, often drying pinkish.
Fruits:
Achenes smooth, long, the body tapering gradually to a stout, grooved beak which is about half as long as the body or, as in ours, more commonly beakless; pappus of numerous hairlike bristles, 10-12 mm long, white.

Source:  The Illustrated Flora of British Columbia

USDA Species Characteristics

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

Ecology

Ecological Framework for Agoseris glauca

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

Avg

Min

Max
Elevation (metres)
 1521 90 2619
Slope Gradient (%)
 20 0 100

Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]

 186 0 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric] 		3 0 7
Modal Nutrient Regime
Class
 C
# of field plots
 species was recorded in:
 705
Modal BEC Zone Class
 ESSF

All BEC Zones (# of stations/zone) species was recorded in

 AT(22), BAFA(8), BG(17), BWBS(1), CWH(63), ESSF(226), ICH(1), IDF(144), IMA(14), MS(89), PP(27), SBPS(61), SBS(1), SWB(1)

Habitat and Range

Mesic to dry grasslands, shrublands, open forests, meadows and scree slopes in the steppe to alpine zones; frequent throughout BC except rare in coastal BC; N to SE AK, E to AB and S to ID, MT and WA.

Source:  The Illustrated Flora of British Columbia

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