This study aimed to elucidate the effects of heterogeneous habitats on the reproductive strategies of clonal plants. By using the clonal bunchgrass Elymus excelsus in the Songnen Plain as the research objects， three habitats， roadside （H1）， riverside （H2） and meadow （H3） were established. The number of ramets， biomass， and reproductive traits were measured at the maturity stage and the post-fruiting stage. The results showed that， at the maturity stage， the number of reproductive ramets in H3， the height of reproductive ramets in H2 and H3， as well as inflorescence biomass and reproductive allocation II across all habitats， were significantly higher than those at the post-fruiting stage （P<0.05）. Significant differences in numerical and biomass traits were observed among different habitats. Overall， plants in H1 exhibited the best performance in reproductive and vegetative ramet number and biomass. In contrast， plants in H2 and H3 showed divergent patterns in growth and reproduction， with most reproductive traits in roadside habitats exceeding those in meadow habitats despite smaller tuft size. With the increasing of tuft size， the number and biomass of vegetative ramets， reproductive ramets and total ramets exhibited significant linear relationships across habitats and growth stages （P<0.05）. The results indicate that E. excelsus adapts to heterogeneous habitats by flexibly adjusting its numerical traits and biomass allocation.

Bunchgrass  /  Heterogeneous habitats  /  Vegetative reproduction  /  Sexual reproduction  /  Reproductive strategy