F90v1 - houndstongue?

[Rafal]

Hartlieb's drawings are fairly generic and mostly lack roots and flowers

Agree, actually the manuscript description says more or less the same:

The high costs of such a richly decorated book makes it highly unlikely that it was actually used by doctors or pharmacists of the time. Furthermore, the botanical imprecision of the 160 pictures would make an identification of a specific plant in nature difficult, not to speak of the ten animals whose images were added. Hartlieb’s work was obviously created for representational purposes, he himself being the long time personal physician of Duke Albrecht III. of Bayern-München.

And you definitely wouldn't recognize real plant by this picture