Lathyrus quinquenervius is clonal plant with two pathes to be bred, one is sexual by seed and the other is asexual by rhizome.

• 最后，观测了五脉山黧豆的开花动态，并用杂交指数（OCI）、花粉-胚珠比（P/O）方法测定了其有性繁育系统类型。结果表明，五脉山黧豆的花期持续45天左右，盛花期为6月下旬左右。