What are seeds from harmful weed species referred to as?

Seeds from harmful weed species are referred to as noxious weed seeds. This term is specifically used to categorize seeds that can cause significant harm to crops, native plant species, livestock, and ecosystems. Noxious weed seeds are recognized for their invasive potential, leading to considerable economic and ecological impacts if not managed properly.

The designation of seeds as noxious is often part of regulatory frameworks, such as seed law and inspection regulations, to help control their spread and mitigate their effects by requiring proper labeling, inspection, and sometimes even destruction of contaminated seed batches. This ensures that farmers and land managers take precautions against planting or spreading these harmful species.

Other terms in the options refer to different contexts. For instance, seed quality pertains to the overall condition or viability of the seeds, bulk seed refers to seeds that are sold in large quantities without specific variety designation, and weed seeds broadly describe any seeds from unwanted plants but do not necessarily carry the same regulatory implications as noxious weed seeds. Thus, the term noxious weed seeds is both precise and important in the context of agricultural regulation and management.