FoI
Silverleaf Sunflower   
Foto info
Silverleaf Sunflower
ntroduced Photo: Gurcharan Singh
Common name: Silverleaf Sunflower
Botanical name: Helianthus argophyllus    Family: Asteraceae (Sunflower family)

Silverleaf Sunflower is a coarse annual herb 1.5-2 m tall. Stems are densely white-velvety. Leaves are ovate to ovate-lanceshaped, 15-25 cm long and nearly as broad, densely white-wooly-silky with long silky hairs. Ray florets are 15 or more, 2.5-3.5 cm long, yellow to orange-yellow. Disk florets are usually deep purple. Achenes are 4-6 mm long. Silverleaf Sunflower is native to North America, cultivated as a garden plant in India.

Identification credit: Gurcharan Singh
Photographed in Delhi.
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