Helenium bolanderi
| Helenium bolanderi | |
|---|---|
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Embryophytes |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Helenium |
| Species: | H. bolanderi
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| Binomial name | |
| Helenium bolanderi Gray 1868
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| Synonyms[1] | |
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Helenium bolanderi is a North American species of flowering plant in the family Asteraceae known by the common name coastal sneezeweed. It is native to southern Oregon and northern California as far south as Mendocino County, primarily along the seacoast.[2][3][4]
Helenium bolanderi perennial herb sometimes as much as 140 cm (56 inches or 4 2/3 feet) in height. It has a generally unbranched, erect stem with oval-shaped leaves. The flowers arise on naked peduncles with one to three flower heads per plant. Each flower head has a fringe of 15-30 golden yellow ray florets bent backwards from a rounded center of sometimes over 1000 disc florets (yellow toward the base but brown or purple near the tips). The fruit is a tiny, hairy achene a few millimeters long.[5]
References
- ^ The Plant List, Helenium bolanderi A.Gray
- ^ Biota of North America Program 2014 county distribution map
- ^ Calflora taxon report, University of California, Helenium bolanderi A. Gray Bolander's sneezeweed, coastal sneezeweed
- ^ Turner Photographics, Helenium bolanderi - Wildflowers of the Pacific Northwest photo, description, partial distribution map
- ^ Flora of North America, Helenium bolanderi A. Gray, 1868. Coastal sneezeweed
External links
- Jepson Manual Treatment
- United States Department of Agriculture Plants Profile
- Calphotos Photo gallery, University of California
- Photo of herbarium specimen at Missouri Botanical Garden, collected near Humboldt Bay in 1901, isotype of Helenium bigelovii var. festivum
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