Agoseris retrorsa
| Agoseris retrorsa | |
|---|---|
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Agoseris |
| Species: | A. retrorsa
|
| Binomial name | |
| Agoseris retrorsa | |
| Synonyms[1] | |
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Agoseris retrorsa is a North American species of flowering plant in the family Asteraceae known by the common name spearleaf agoseris or spearleaf mountain dandelion.[2]
It is native to western
Washington to Utah to Baja California, where it grows in many types of habitat, including chaparral, scrub, and coniferous forest.[3][4]
Description
Agoseris retrorsa is a perennial herb forming a base of leaves about a number of erect, thick, wool-coated inflorescences up to half a meter in height. The narrow leaves are linear to lance-shaped, and spearlike with curving toothlike lobes along the edges.[2]
The inflorescence bears a single
ray florets, the outer ones usually darker in color.[2]
The fruit is an
pappus of white bristles.[2]
References
- ^ The Plant List Agoseris retrorsa (Benth.) Greene
- ^ a b c d Flora of North America, Agoseris retrorsa
- ^ Biota of North America Program 2014 county distribution map
- ^ Calflora taxon report, University of California, Agoseris retrorsa (Benth.) E. Greene Spearleaf mountain dandelion, spear leaved agoseris, spearleaf agoseris
External links
- Jepson Manual Treatment: Agoseris retrorsa
- United States Department of Agriculture Plants Profile: Agoseris retrorsa
- Agoseris retrorsa — Calphotos Photo gallery, University of California
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