Herbal medicine is not currently an active part of popular Christianity. Finding information on the subject, such as regarding the names of herbs mentioned in the Bible, is not always easy. Here are some links to websites on herbs related to Christianity.
A translation of "Song of the Twelve Points Shining Bright as the Starry Sky and Able to Heal All the Many Diseases"
This is from the appendix on teachings from a Taoist:
Acer Box Elder / Ash Leaf Maple
Aralia spinosa Devil's Walkingstick
Rumex Sheep Sorrel
Rumex spp. Yellow Dock
Viola spp. Violet
Nathaniel Whitmore, herbalist