Serving Southern Jefferson County in the Great State of Montana

Learn About Whitehall Bio Control: 7/3/2024

Another nasty noxious weed is houndstongue (Cynoglossum officinale). It seems our North American attempts to control this weed are becoming a somewhat sensational secret success story! Let's describe the weed first.

Houndstongue is a biannual (grows for two years) plant. In the first year, the seed sprouts and grows a basal rosette (a ring of leaves near the ground) and a deep tap root. During the second season, the plant uses the energy and nutrients stored in the carrot-shaped tap root to grow leaves and then bolt (quickly grow tall flowering stems), flower, and produce seeds.

The leaves are...

 
 

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