Helianthus divaricatus
| Helianthus divaricatus | |
|---|---|
 | |
| Conservation status | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Tribe: | Heliantheae |
| Genus: | Helianthus |
| Species: | H. divaricatus |
| Binomial name | |
| Helianthus divaricatus L. | |
| Synonyms | |
|
H. d. var. angustifolius Kuntze | |
Helianthus divaricatus, commonly known as the woodland sunflower or rough woodland sunflower,[2] is a perennial herb in the composite family. It is native to eastern North America, from Ontario and Quebec in the north, south to Florida and west to Oklahoma and Iowa.
Helanthus divaricatus commonly occurs in dry, relatively open sites. The showy yellow flowers emerge in summer through early fall.[3]
The woodland sunflower is similar to Helianthus hirsutus, but its stem is rough. It is up to 1.5 m tall with short stalked, lancelet to oval leaves, 1–8 cm wide with toothed margins. Its flowers have 8 to 15 rays, 1.5 to 3 cm long with an orange or yellowish brown central disk.[2]
References
- ↑ "Helianthus divaricatus". NatureServe Explorer. NatureServe. Retrieved 2008-08-30.
- ↑ 2.0 2.1 Dickinson, T.; Metsger, D.; Bull, J.; & Dickinson, R. (2004) ROM Field Guide to Wildflowers of Ontario. Toronto:Royal Ontario Museum, p. 170.
- ↑ Schilling, Edward E. (2006). "Helianthus divaricatus". In Flora of North America Editorial Committee, eds. 1993+. Flora of North America 21. New York & Oxford: Oxford University Press. p. 157
External links
Media related to Helianthus divaricatus at Wikimedia Commons
Data related to Helianthus divaricatus at Wikispecies
- "Helianthus divaricatus". Integrated Taxonomic Information System. Retrieved 30 August 2008.
- Distribution Map from Flora of North America
- Profile at MissouriPlants.com