Carnegiea gigantea, Giant Saguaro

Southwest Desert Flora

Home to the plants of the Sonoran, Chihuahuan and Mojave Deserts

Cirsium ochrocentrum, Yellowspine Thistle

Agoseris glauca, Pale Agoseris

Agoseris glauca, Pale Agoseris Agoseris glauca, Pale Agoseris Agoseris glauca, Pale Agoseris    Agoseris glauca, Pale Agoseris

Scientific Name: Agoseris glauca
Common Name: Pale Agoseris
Also Called: False Dandelion, Pale Mountain Dandelion and Prairie Dandelion.
Family: Asteraceae, Sunflower Family
Synonyms: ( )
Status: Native
Duration: Perennial
Size: Up to 1 foot in Arizona.
Growth Form: Forb/herb, subshrub; erect, basalbasal leaves, no stems; milky sap, considerable vegetative variations locally and across a wide range.
Leaves: Highly variable, dark green; basal leaves up to 12 inches, erect or with tips ascending; linear, lanceolate or oblanceolate, some varieties with lobed leaves; margins entire or toothed, hairless or with soft white hairs.
Flower Color: Yellow; ligulate florets only, usually single 1 inch flower heads on tips of long leafless stalks (scape); an attractive series of pointed bracts or phyllaries subtend the flower head, fruit is an achene with soft white bristles resembling the puff ball of a Dandelion.
Flowering Season: May to October.
Elevation: 6,500 to 10,000 feet.
Habitat Preferences: Mid to higher elevations in Arizona, multiple habitat; sunny open areas in coniferous forests such as meadows and slopes.
Recorded Range: Western half of the United States and most of Canada. In northern Arizona, Pima and Graham Counties.

U.S. Weed Information: No data available.
Invasive/Noxious Weed Information: No data available.
Wetland Indicator: Agoseris glauca is on the USDA 2012 National Wetland Plant List.
Threatened/Endangered Information: The State of Michigan has listed Agoseris glauca as Threatened.

Genus Information: Eight species in Agoseris primarily in the western half of North America, and in Michigan and Ontario. Three species in Arizona and 6 varieties in Agoseris glauca of which 3 are native to Arizona:
Agoseris glauca var. dasycephala, Pale Agoseris
Agoseris glauca var. glauca, Pale Agoseris and
Agoseris glauca var. laciniata, False Agoseris.

Comments: Pale Agoseris is not a desert species and is typically found at higher elevations in mixed coniferous forest communities. Pale Agoseris, also called False- or Pale-Dandelion, should not be confused with the more traditional common Dandelion, Taraxacum officinale, although it is superficially similar in appearance. Common names for this genus are Mountain Dandelion and False Dandelion.

Pale Agoseris is one of three Agoseris species native to Arizona which also includes Annual Agoseris, Agoseris heterophylla and Orange Agoseris, Agoseris aurantiaca.

An infusion of the entire plant was used to wash sores and rashes and an infusion of roots was taken as a laxative by the Okanagan-Colville Indians of British Columbia and Washington. See species account from Native American Ethnobotany, University of Michigan, Dearborn.

Date Profile Completed: 8/8/2012; Updated, 07/25/2015
References:
U.S. Dept. of Agriculture, Natural Resources Conservation Service on-line database
Arizona Flora, Kearney, Thomas H., Peebles, Robert H., 1960, University of California Press, Berkley and Los Angeles
The Jepson Manual, Citation: http://ucjeps.berkeley.edu/interchange/I_treat_indexes.html Wed Aug 8 17:49:08 2012
Gary I. Baird, FNA | Family List | FNA Vol. 19, 20 and 21 | Asteraceae | Agoseris, Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico. 16+ vols. New York and Oxford.
SeINet for synonyms, scientific names and recorded geographic locations, http://swbiodiversity.org/seinet/
USDA, Michigan: prairie or pale agoseris - Threatened
U.S. Dept. of Agriculture, NRCS, Wetland Indicator Status, 2012 National Wetland Plant List, http://plants.usda.gov/wetland.html
U.S. Dept. of Agriculture, NRCS, Threatened and Endangered, Protected Plants for All Scientific Names -
http://plants.usda.gov/java/threat?statelist=states&stateSelect=US23