Tetraneuris torreyana is a North American species of plants in the sunflower family, known by the common name Torrey's four-nerve daisy.[2] It grows in the western United States, in extreme southern Montana, Arizona, New Mexico, Utah, Colorado, and Wyoming.[3]
Tetraneuris torreyana | |
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Tetraneuris torreyana flowering Natrona County, Wyoming, USA | |
Scientific classification ![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Asterales |
Family: | Asteraceae |
Genus: | Tetraneuris |
Species: | T. torreyana
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Binomial name | |
Tetraneuris torreyana | |
Synonyms[1] | |
Synonymy
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Tetraneuris torreyana is a perennial herb up to 15 cm (5.9 in) tall. It forms a branching underground caudex sometimes producing as many as 40 unbranched, above-ground stems. One plant can produce as many as 40 flower heads. Each head has 7–14 yellow ray flowers surrounding 25-150 yellow disc flowers.[4]
References
edit- ^ The Plant List, Tetraneuris torreyana (Nutt.) Greene
- ^ USDA, NRCS (n.d.). "Tetraneuris torreyana". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 9 December 2015.
- ^ Biota of North America Program 2014 county distribution map
- ^ Flora of North America, Tetraneuris torreyana (Nuttall) Greene, 1898.