Seed dormancy and germination characteristics of Gaura parviflora, an exotic weed species in China Module biomass structure and seed germination traits of the exotic invasive plant Gaura parviflora Anatomical Structures of Vegetative Organs and Ecological Adaptation of Gaura parviflora Study on the seasonal growing dynamics and invasive characteris-tics of Gaura parviflora Phenotypic variation and covariation in natural populations of the exotic weed Gaura parviflora in different habitat