Rosinweed

Silphium integrifolium is a herbaceous perennial native to prairies, glades, railroad right-of-ways, and roadsides in the Midwest and portions of the southern United States. Its common names include rosinweed, whole-leaf rosinweed, entire-leaf rosinweed, prairie rosinweed, and silflower. Wikipedia

You can help scientists understand how climate change is impacting this species by using the phenophase guide below to observe its lifecycle in Nature's Notebook.

Rosinweed Phenophase Guide

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