Rehmannia chinensis:

Rehmannia chinensis:

Rehmannia chinensis Libosch. ex Fisch. & C. A. Mey, Phrymaceae: See Rehmannia glutinosa (Gaertn.) Libosch. ex Fisch. & C. A. Mey.

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