| Helianthus laciniatus | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Helianthus |
| Species: | H. laciniatus |
| Binomial name | |
| Helianthus laciniatus A.Gray 1849 not (L.) E.H.L.Krause 1905 | |
| Synonyms | |
| |
Helianthus laciniatus is a North American species of sunflower known by the common name alkali sunflower. It is found in the southwestern United States (southeastern Arizona, southern New Mexico, western Texas) and north-central Mexico (Chihuahua, Coahuila, Nuevo León, Durango). It is fairly common in the Chihuahuan Desert.
Helianthus laciniatus is a perennial herb up to 200 cm (almost 7 feet) tall. Most of the leaves are on the stem rather than clumped together close to the ground, each leaf is up to 9 cm (2.7 inches) long. One plant usually produces 1-9 flower heads. Each head has with 14–20 yellow ray florets surrounding 40 or more red or purple disc florets. The plant grows in dry, alkaline desert soils.
References
- The Plant List, Helianthus laciniatus A.Gray
- NRCS. "Helianthus laciniatus". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 6 July 2015.
- Biota of North America Program 2014 county distribution map
- SEINet, Southwestern Biodiversity, Arizona Chapter, Helianthus laciniatus A. Gray photos, description, distribution map
- ^ Flora of North America, Helianthus laciniatus A. Gray
External links
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