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Agoseris glauca (Pale agoseris)
Bransford, W.D. and Dolphia

Agoseris glauca

Agoseris glauca (Pursh) Raf.

Pale Agoseris, Pale Mountain Dandelion, False Dandelion

Asteraceae (Aster Family)


USDA Symbol: aggl

USDA Native Status: L48 (N), AK (N), CAN (N)

Several leafless stalks, each with a yellow flower head at the top, grown from a basal cluster of leaves. Sap milky.

Several other yellow-flowered species of Agoseris, called False Dandelion or Mountain Dandelion, are distinguished from this one by technical features of the fruit. The true Dandelion (Taraxacum) is also similar, but has minute pegs all over the top of the fruit and usually has bracts curved back beneath the involucre.


From the Image Gallery

7 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Leaf: Green
Size Class: 1-3 ft.

Bloom Information

Bloom Color: Yellow
Bloom Time: May , Jun , Jul , Aug , Sep


USA: AK , AZ , CA , CO , IA , ID , MI , MN , MT , ND , NE , NM , NV , OR , SD , UT , WA , WY
Canada: AB , BC , MB , NT , ON , SK
Native Distribution: Western Canada; south through the California mountains; east across the West to New Mexico, South Dakota, and Minnesota.
Native Habitat: Open areas in coniferous forests and in sagebrush.

Growing Conditions

Water Use: Medium
Light Requirement: Sun
CaCO3 Tolerance: Medium


Conspicuous Flowers: yes

Find Seed or Plants

View propagation protocol from Native Plants Network.

National Wetland Indicator Status

This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

Additional resources

USDA: Find Agoseris glauca in USDA Plants
FNA: Find Agoseris glauca in the Flora of North America (if available)
Google: Search Google for Agoseris glauca


Record Modified: 2009-02-19
Research By: TWC Staff

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