Helianthella quinquenervis, the fivenerve helianthella,[2] is a North American plant species in the family Asteraceae. It grows in the mountains of the western United States and northern Mexico. This include the Rockies, the Black Hills, the ranges of the Great Basin, and the northern Sierra Madre, from Montana, Oregon, and South Dakota south as far as western Chihuahua and Coahuila.[3][4][5]
| Helianthella quinquenervis | |
|---|---|
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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: | Helianthella |
| Species: | H. quinquenervis
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| Binomial name | |
| Helianthella quinquenervis | |
| Synonyms[1] | |
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Helianthella quinquenervis is a herbaceous plant up to 150 cm (4.9 ft) tall. Leaves are larger than those of most related species, up to 50 cm (20 in) long, each with 3 or 5 prominent veins running the length of the leaf. The plant usually produces only one yellow flower head per stem, nodding (hanging). Each head contains 8-21 bright yellow ray flowers surrounding numerous yellow disc flowers.[6]
References
edit- ^ The Plant List, Helianthella quinquenervis (Hook.) A. Gray
- ^ NRCS. "Helianthella quinquenervis". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 20 July 2015.
- ^ Biota of North America Program 2014 county distribution map
- ^ SEINet, Southwestern Biodiversity, Arizona chapter includes photos, description, distribution map
- ^ photo of herbarium specimen collected in Coahuila in 1985
- ^ Flora of North America, Helianthella quinquenervis (Hooker) A. Gray, 1883.
External links
edit
Media related to Helianthella quinquenervis at Wikimedia Commons
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