The loess hill and gully region of Ordos Plateau was selected as the study area. Seed germinations of Arternisia giraldii, Arternisia sacrorurn and Artemisia ordosica were characterized comprehensively and analyzed systematically. The results indicate that the seeds of Arternisia giraldii have extremely light weight, as low as (0. 090 1±0. 005 1) g per 1 000 seeds. This trait allows the species to achieve higher dis-persal rate than the others. Furthermore, seed germination rate of Arternisia giraldii remained almost same as the other species with similar traits. This suggests that the light seed weight of Arternlsia giraldii was clearly not a disadvantage for the success of seed germination. Instead, it enhances the effective adaptability of Arternisia giraldii to the gully habitat.