Dieteria asteroides, the fall tansyaster,[2] is a North American species of plants in the sunflower family. It is native to the southwestern United States (California, Arizona, Nevada, New Mexico, Colorado, Utah) and northern Mexico (Chihuahua, Sonora, Baja California).[3]
| Dieteria asteroides | |
|---|---|
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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: | Dieteria |
| Species: | D. asteroides
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| Binomial name | |
| Dieteria asteroides | |
| Synonyms[1] | |
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Synonymy
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Dieteria asteroides is a biennial or perennial herb with a woody taproot. It often grows in a clump of several stems. Ray florets in the flower heads are white or purple, and female. Disc florets are yellow and bisexual.[4][5]
- Dieteria asteroides var. asteroides - California, Arizona, Nevada, New Mexico, Chihuahua, Sonora
- Dieteria asteroides var. glandulosa (B.L.Turner) D.R.Morgan & R.L.Hartm. - Arizona, Nevada, New Mexico, Utah
- Dieteria asteroides var. lagunensis (D.D.Keck) D.R.Morgan & R.L.Hartm. Baja California; Laguna Mountains in San Diego County in California
References
edit- ^ a b "Dieteria asteroides Torr". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 21 March 2024.
- ^ USDA, NRCS (n.d.). "Machaeranthera asteroides". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 21 June 2015.
- ^ Biota of North America Program 2014 county distribution map
- ^ a b Flora of North America, Dieteria asteroides Torrey in W. H. Emory, Not. Milit. Reconn. 141. 1848.
- ^ Wooton, Elmer Ottis & Standley, Paul Carpenter 1913. Contributions from the United States National Herbarium 16(4): 189 as Machaeranthera simplex
External links
edit- photo of herbarium specimen at Missouri Botanical Garden, collected in New Mexico, isotype of Machaeranthera simplex
- photo of herbarium specimen at Missouri Botanical Garden, isolectotype of Machaeranthera canescens var. latifolia A. Gray (syn of Machaeranthera asteroides var. asteroides
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