Helianthus laciniatus

Helianthus laciniatus
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): 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[1]
  • Helianthus crenatus R.C.Jacks.
  • Helianthus heiseri R.C.Jacks.

Helianthus laciniatus is a North American species of sunflower known by the common name alkali sunflower.[2] It is found in the southwestern United States (southeastern Arizona, southern New Mexico, western Texas)[3] and north-central Mexico (Chihuahua, Coahuila, Nuevo León, Durango).[4] It is fairly common in the Chihuahuan Desert.[5]

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.[5]

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