… , Eastern redbud (Cercis canadensis) and box elder ( … americanus) and an obscure native, upland swamp privet (Forestiera … Waldsteinia). Sedges (Carex), Canada ginger (Asarum canadense) and creeping phlox … creeper (P. inserta), native vines that are often …… , Eastern redbud (Cercis canadensis) and box elder ( … americanus) and an obscure native, upland swamp privet (Forestiera … Waldsteinia). Sedges (Carex), Canada ginger (Asarum canadense) and creeping phlox … creeper (P. inserta), native vines that are often …