
Photo of Silphium terebinthinaceum (Prairie Dock)
Silphium terebinthinaceum - Very large, wide, spade-shaped basal leaves subtend a 3-8 ft. flowering stalk. Bright yellow, composite flower are numerous on older plants. Family; Asteraceae
Ref. 47793
Author :
Paul S Drobot
Online since:
February 25th 2025
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