Any of various wild plants with large leaves or robust growth, particularly plants associated with pastures or rangeland.
Compound of 'bull' (large, coarse) and 'weed.' This descriptive term for rough vegetation appears in American agricultural writing, contrasting with more delicate plants. The exact species varies regionally.
Early American farmers created whole vocabularies of plant names—'bull-weeds' were the tough, aggressive plants that cattle could eat but would choke more delicate livestock. Your plant naming told your expertise.
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