Farine does usually mean flour, but I had a look (displacement activity: can you tell I have loads of work to do and no desire to do any of it...?) and in this case it seems to cover a multitude of powdered substances.
Littré defines farine as: "Poudre blanche que l'on obtient par la trituration des graines des céréales."
One website (doctissimo) includes under the heading "farines infantiles":
"Les farines de céréales (blé, riz, orge, avoine, seigle, maïs...) [...]; les farines provenant de racines ou de tubercules, [...]les fécules de rhizomes (pomme de terre, sagou, arrow-root, tapioca ou farine de manioc...) [...]; Les farines d'aleurones (graines oléagineuses : soja, tournesol...) [...]; Les farines de légumineuses (lentilles, pois, haricots...) [...]"
All grist to the translator's mill, but TMI for anyone else, I suspect
I agree with you, PizPizPiz, the whole BF/weaning thing is tricky when you get such different messages about if/when/how/how long you should or must do certain things. The UK and France clearly don't use the same research when setting out their guidelines for mothers.