Q.Misinformation in this article: https://www.bhg.com/gardening/plant-dictionary/perennial/baptisia/
Hi! The article says that false wild indigo was used as a dye by early European settlers in America before true indigo became more available. The specific truth is that only the roots of the yellow false indigo, baptisia sphaerocarpa, were used to make dye. The other species don’t provide any dye. I once worked as a history interpreter for an early settlement and it was embarrassing to one day find out that our large garden of baptisia australis, the blue false indigo, was not the plant that was used.
I feel like you might want to clarify this point for your readers, in case anyone should presume as we once did, that the blue plant was what gave blue dye.

Certified GKH Gardening Expert
That link goes to the Better Homes and Gardens website, of which we have no control, but we also have it cited here:
https://www.gardeningknowhow.com/ornamental/flowers/baptisia/growing-baptisia-plants.htm
I will bring it to the attention of our editor. Thanks for letting us know!