Helianthus divaricatus
| Helianthus divaricatus | |
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| File:Helianthus divaricatus 7718.jpg | |
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H. divaricatus
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| Binomial name | |
| Helianthus divaricatus |
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Helianthus divaricatus var. angustifolius Kuntze |
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Helianthus divaricatus, commonly known as the woodland sunflower or rough woodland sunflower,[3] is a North American species perennial herb in the composite family. It is native to central and eastern North America, from Ontario and Quebec in the north, south to Florida and Louisiana and west to Oklahoma and Iowa.[4]
Helanthus divaricatus commonly occurs in dry, relatively open sites. The showy yellow flowers emerge in summer through early fall.[5]
The woodland sunflower is similar to Helianthus hirsutus, but its stem is rough. It is up to 1.5 m tall with short stalked, lanceolate to oval leaves, 1–8 cm wide with toothed margins. Its flowers have 8 to 15 rays, each 1.5 to 3 cm (0.6-1.2inches) long, surrounding an orange or yellowish brown central disk.[3]
References
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ The Plant List, Helianthus divaricatus L.
- ↑ 3.0 3.1 Dickinson, T.; Metsger, D.; Bull, J.; & Dickinson, R. (2004) ROM Field Guide to Wildflowers of Ontario. Toronto:Royal Ontario Museum, p. 170.
- ↑ Biota of North America Program 2014 county distribution map
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
Media related to Helianthus divaricatus at Wikimedia Commons 
Data related to Helianthus divaricatus at Wikispecies
- Lua error in package.lua at line 80: module 'strict' not found.
- Distribution Map from Flora of North America
- Missouri Plants
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