I am more inclined to the term entheogens, as there is a note-worthy distinction to ‘drugs’.

Entheogens are the foundation of the C. Castaneda visions, of which all of his works are colored. It was his door way into 'dream visions'. Second, let us not be so hasty is our philosophic endeavors to assume the entheogens were not a major priority/necessary to D. Juan and his way of life. There would be no Castaneda without entheogens.

My interest is in the Entheogenic's and the mapping of the dimensional landscape. I believe Castaneda provides a verifiable and working primer to my endeavors.

I noted of the ingredents mentions; there was a yellow flower, mushrooms, tobacco, and (hmmm the key ingredent). I am curious as the to 'yellow flower.'

i did the power plants for about three years. i got to a point where i became too sensitve and got the door open that needed to open. dont do power plants anymore cuz its easy for me open those doors with my intent and will. the only doors im working with now is love and peace and X is helping me with that now.its a very non sexual thing for me.

Kerray, my brother and i have just recently met lady salvia, and we both believe that she IS one of the ingredients for the little smoke. she's an ally, number one, and number two, from the research that he has done she can only be found in oaxaca mexico. so it is very very likely that one of the ingredients IS salvia.
funny that we were just talking about this very recently ^.^
and reading over your quotes it seems even MORE likely.
she called to my brother and told him to come to her, we never saw her in our experience, but she showed us other worlds, made my body feel non exsistant. she brought us both to a diffrent place compltly away from our bodies
so heres another vote for, lady salvia being a part of the little smoke

LOVE!!!

I must say, I did think for a while that this might be one of the ingredients, however currently I find it doubtful for several reasons. While I am sure Salvia is an Ally, it is used buccally by shamans in every situation I have heard of, and it is in fact considered insulting to smoke it (I know this is certainly not conclusive.) Also, it does not reproduce readily without human intervention, its seeds are almost always sterile (and as far as anyone can tell they are only ever fertile when the flowers are hand pollinated), and it must therefore be propagated by cuttings. If this were one of the ingredients Don Juan probably would have had to show Carlos how to propagate it which is never mentioned. Also, many people who have used Salvia report meeting the "Salvia Goddess" or "Salvia Spirit" which is considered to be the essence of the plant, and it is specified that the smoke "never shows it presence."