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Wildflowers of Texas, Plant Resources Center, University of Texas at Austin

Rough-stem Rosinweed   Silphium integrifolium  var.  asperrimum
Sunflower family — Asteraceae

Slides: (click for larger view)


This rather tall sunflower is found primarily along streams on the Edwards Plateau and in north-central Texas. Although the leaves are sandpapery to the touch, they are relished by deer and other browsing wildlife.

Dried Specimens: (click for larger view)


Flowering Months: July, August

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