Scientifically, communication matters. Therefore, other names do also matter.

All other names are generally considered either common or historic. Common names are regarded as too ambiguous for scientific use, they are generally only mentioned in relevance to collections such as "How do the local people in <area x> having <population y> of <latin name z> (who might help identify where it is growing) refer to the organism?". In a small number of cases local names confer ethnobotanical or cultural semantics.