Grey lichen grew on the cabin logs and dried stalks of horseweed and pigweed and fleabane rose from the snow in the doorways.    From Wordnik.com.  [Cold Mountain]

Farther south, in the southern needleleaf region, the transition from old field to forest begins with crab grass and annuals, proceeds to horseweed followed by broomsedge, and culminates in a seeding-in of pitch, longleaf, slash, loblolly, or shortleaf pine.    From Wordnik.com.  [The Field Guide to Wildlife Habitats of the Eastern United States] Reference

Gravel root; horseweed; knotweed; Canadian collinsonia.    From Wordnik.com.  [Resources of the Southern Fields and Forests, Medical, Economical, and Agricultural. Being also a Medical Botany of the Confederate States; with Practical Information on the Useful Properties of the Trees, Plants, and Shrubs] Reference

It seems that horseweed drives most of our burndown decisions.    From Wordnik.com.  [Delta Farm Press RSS Feed] Reference

Other weeds, like hairy fleabane and horseweed, can adapt to both wet and dry conditions.    From Wordnik.com.  [Western Farm Press RSS Feed] Reference

Currently dicamba is used for burndown to control glyphosate-resistant horseweed in a number of crops.    From Wordnik.com.  [Southeast Farm Press RSS Feed] Reference

We used to think that horseweed would not come in behind a winter or spring disk, but this is no longer true.    From Wordnik.com.  [Delta Farm Press RSS Feed] Reference

He came out upon the road slowly and stopped there, switching his legs absently with the stalk of a horseweed.    From Wordnik.com.  [The Escape of Mr. Trimm His Plight and other Plights] Reference

404,000 acres of horseweed are resistant to glyphosate, and 14,000 of Louisiana's 112,000 acres of ryegrass show herbicide resistance.    From Wordnik.com.  [Delta Farm Press RSS Feed] Reference

horseweed, 203, 215.    From Wordnik.com.  [The Field Guide to Wildlife Habitats of the Eastern United States] Reference