Typha latifolia | Dalbergia latifolia | Kalmia latifolia | Silene latifolia | Sagittaria latifolia | Arnica montana | Anogeissus latifolia | ''Trientalis latifolia | Imago, larva and ''Typha latifolia | Fraxinus latifolia |
Other understory species occurring with the rush include grouse whortleberry (Vaccinium scoparium), Sitka valerian (Valeriana sitchensis), mountain arnica (Arnica latifolia), and menziesia (Menziesia ferruginea).