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Ratibida pinnata
Also called Drooping Prairie Coneflower, Gray Head Prairie Coneflower, Grey Headed Prairie Coneflower, Pinnate Leaf Prairie Coneflower, Drooping Coneflower, Globular Prairie Coneflower, Gray Head Coneflower
Ratibida pinnata is a species of flowering plant in the family Asteraceae known by the common names pinnate prairie coneflower, gray-head coneflower, yellow coneflower, and prairie coneflower. It is native to the central and eastern United States and Ontario in Canada.
This species is a perennial herb which can well exceed 1 meter (3 ft 3 in) in height. It has fibrous roots and rhizomes or woody caudices. The rough-haired, glandular leaves are up to 40 cm (16 in) long and are divided into several large lance-shaped or oval lobes. The inflorescences are tall, generally far above the highest leaves. Each flower head contains up to 15 yellow ray florets up to 6 cm (2+1⁄4 in) long. The center of the flower is globular or oval in shape and measures up to 2.5 cm (1 in) long. It is covered in up to 200 or more disc florets which are yellow-green to purplish in color.
Text excerpted from the Wikipedia article Ratibida pinnata 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.
