Pasture and Weed Observation

What happens here

While driving through the pasture, the farmer observes the condition of the grass and identifies a common weed called "dog fennel" (likely horsetail, Equisetum arvense, or similar fern-like plant often mistaken for fennel or dogfennel, Eupatorium capillifolium). He notes that this weed is drought-tolerant and resilient, returning every year with round seed pods. He considers it a "scourge" on the farm and explains that cows typically won't eat it. He plans to mow the pasture once the cattle have grazed it down, but will delay to avoid harming baby deer currently in the tall grass. He discusses the current lack of hay for winter due to drought and a poor spring cutting.

Goal: Identify pasture conditions and problematic weeds for future management.