The reproductive isolation among sympatric Pedicularis species is influenced by the differences of pollinator behavior and floral form via ethological isolation and mechanical isolation.

• 另一方面是通过机械隔离机制，即由熊蜂不同的访花行为以及植物花部结构上的差异避免柱头与熊蜂携带的异种花粉接触。