Agoseris glauca

Agoseris glauca is a North American species of flowering plants in the daisy family known by the common names pale agoseris, prairie agoseris, and short-beaked agoseris.

Agoseris glauca
Mount Rainier National Park
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Subfamily:
Cichorioideae
Tribe:
Cichorieae
Genus:
Agoseris
Species:
A. glauca
Binomial name
Agoseris glauca
Synonyms[1]

The plant is native to western and northwestern North America from Alaska east to the Northwest Territories and Ontario, south to California, Arizona, and New Mexico.[2] It grows in many habitat types.

Description

Agoseris glauca is a perennial herb which varies in general appearance. It produces a basal patch of leaves of various shapes which may be as long as the plant is high.[3]

There is no stem but the plant flowers in a stemlike inflorescence which is sometimes erect, reaching heights near half a meter or taller. The flower head is one to three centimeters wide with layers of pointed phyllaries. The head is ligulate, bearing many yellow ray florets but no disc florets.[3]

The fruit is an achene with a body up to a centimeter long and a pappus which may be almost 2 centimeters in length.[3]

Varieties[1][3]
  • Agoseris glauca var. dasycephala (Torr. & A. Gray) Jeps.
  • Agoseris glauca var. glauca [4]

References
  1. The Plant List search for Agoseris glauca
  2. CalFlora taxon report, University of California: Agoseris glauca
  3. Flora of North America, Agoseris glauca
  4. CalFlora Database: Agoseris glauca var. glauca


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