heterostyly incompatibility花柱异长不亲和性
dimorphic heterostyly[植] 二型花柱异长现象
homomorphic heterostyly同形花柱异长
N（名词） the condition in certain plants, such as primroses, of having styles of different lengths, each type of style in flowers on different plants, which promotes cross-pollination 花柱异长