Au Contraire!.....Re: Oh, this is fantastic, UNY - thanks!

You do realize that your example is saying the same thing, don't you? 1/2 cup of echin.a and 1/2 cup of echin.p will weigh the same.

My example is not saying the same thing.  I have ordered many one pound bags of both the Echinacea roots and the Purpurea always has more volume than does the Angustifolia, yet they are both in one pound bags, which means that a 1/2 cup of each couldn't possibly weigh the same.

Of course, just to be clear, I'm speaking of cut & sifted (c/s) herbs, we never mix c/s herbs with powdered herbs when making up a formula, we either use all of one or all of the other.

Edit:  After I typed the message I thought I would measure a 1/2 cup of both the Echinacea roots just for kicks and so I'd be able to report on the forum for those who might not be aware that volume and weight are not equal.

I have an old kitchen scale that measures in ounces not the newer digital ones so the measurement is probably not exact like it would be on the newer digital scales however, it's close enough for me to clearly see that one weighed double what the other weighed.  The Angustifolia, 1/2 cup weighed 3oz., the Purpurea, 1/2 cup weighed 1.5oz.