Biology:Helianthus argophyllus
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Short description: Species of sunflower
| Helianthus argophyllus | |
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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: | Helianthus |
| Species: | H. argophyllus
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| Binomial name | |
| Helianthus argophyllus Torr. & A.Gray
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Helianthus argophyllus is a North American species of sunflower known by the common name silverleaf sunflower. It is native to the coastal regions of the US state of Texas , and naturalized in other places (Florida, North Carolina, Argentina , Africa, Australia , etc.).[1][2]
Helianthus argophyllus is an annual herb sometimes as much as 300 cm (10 feet) tall. Leaves and stems appear silvery because of a coating of many hairs along the surface. One plant can produce 1-5 flower heads, each 15–20 ray florets surrounding 150 or more disc florets. The plant grows in sandy areas near the seacoast.[3]
References
- ↑ "Biota of North America 2014 county distribution map". bonap.net. http://bonap.net/MapGallery/County/Helianthus%20argophyllus.png. Retrieved 2015-07-04.
- ↑ Gibbs Russell, G. E., W. G. M. Welman, E. Retief, K. L. Immelman, G. Germishuizen, B. J. Pienaar, M. Van Wyk & A. Nicholas. 1987. List of species of southern African plants. Memoirs of the Botanical Survey of South Africa 2(1–2): 1–152(pt. 1), 1–270(pt. 2).
- ↑ "Flora of North America, Helianthus argophyllus Torrey & A. Gray, 1842. Silverleaf sunflower". efloras.org. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066869. Retrieved 2015-07-04.
Wikidata ☰ Q15490451 entry
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