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Helianthus laciniatus
Also called Jagged Edge Sunflower
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.
Southeastern sunflower · Helianthus ambiguus · Swamp sunflower · Common sunflower · Western sunflower · Silverleaf sunflower · Arizona sunflower · Purpledisk sunflower · Serpentine sunflower · Helianthus brevifolius · California sunflower · Lakeside sunflower
Text excerpted from the Wikipedia article Helianthus laciniatus by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
