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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