How are plants defined if they are growing where they are not wanted and conflict with human or property well-being?

Plants that are described as growing where they are not wanted and conflicting with human or property well-being are classified as weeds. Weeds are characterized by their tendency to thrive in disturbed environments, often outcompeting desired plants for resources such as light, nutrients, and water. They can interfere with agricultural and horticultural practices by reducing crop yields and quality.

While invasive species are also plants that can cause harm to the environment, economy, or human health, the specific focus in this context is on the unwanted nature of weeds in relation to property and well-being. Annual plants refer to a growth cycle characteristic, as they complete their life cycle in one year, and non-native plants are species introduced from other regions but do not inherently imply they are detrimental or unwanted.

Thus, the term "weeds" is the most accurate descriptor for such plants, emphasizing their negative impact in specific contexts.