Aconogonon divaricatum:

Aconogonon divaricatum:

Aconogonon divaricatum (L.) Nakai.
Suom.: röyhytatar.
Sven.: vippslide, bergsknäa.
TCM: cha fen shen xue ning.
Bot. syn.: Persicaria divaricata (L.) H. Gross, Polygonum divaricatum L.

I have no articles for this botanical term, but there might be some for the next level down (if found).