Another near specific for bringing down the placenta is a tea of ground ivy Glechoma hederacea.    From Wordnik.com.  [THE NATURAL REMEDY BIBLE] Reference

Common species found at these altitudes include Delphinium cashmerianum, Glechoma tibetica, Silene longicarpophora, Potentilla fruticosa, and Nepeta spp.    From Wordnik.com.  [Karakoram-West Tibetan Plateau alpine steppe] Reference