"Lead plant" can refer to a variety of different plant species, depending on the context. However, some synonyms for "lead plant" that are commonly used include "false indigo," "Amorpha," and "leadwort." False indigo is a native North American plant that produces beautiful blue-purple flowers, while Amorpha is another genus of plants that contains several species commonly referred to as lead plants. Leadwort is a European plant that is often used in traditional medicine and has ornamental value as well. Some other related terms to describe lead plants include "bush clover," "wild indigo," and "prairie clover".