Hey Lichwolf! So I've gone and tested this and figured it out, it seems that the flowers count towards the Collected Recipes!
The total recipe comes to 110. But the flowers count towards the Collected Recipes and having all 6 in your inventory will give you 100%
If by any chance you use these flowers to craft and it gets depleted from your items, the percentage will drop.
And you're correct the food recipes don't count towards the list.
Let me know if this works for you!