I wish this didn't update so fast sometimes.
As to Halfling stating that things should make the game "fun" rather than simply hard, I'd like to point out that my plants will only kill you if you are ill-prepared, and you can fight them perfectly well. They won't one-shot anybody. Except that one guy who was killed in testing, but that was fixed.
Yes, it's going crazy fast now. Worse, I'm not sure how the person doing the modding turn can possibly handle all this info. We might need a different structure if this is to work as intended, but I'm not sure how... I personally will have even more trouble keeping up since life is getting kind of busy.
The comment was about not letting it escalate too much, indeed as you said "fun" rather than "i kill you". Seems like it did not go there for now. Anyway I agree, tarnish stalks are an example of the kind of stuff that's nice. In fact it would be reasonable, "realistic" and cool to have poisonous mushrooms that a) kill you or b) make you go berserk for a while. Preferably they would be extremely similar to delicious mushrooms in appearance.
Oh, incidentally, nobody explicitly mentioned it earlier but should think the wild success of tarnish stalks as the bane of fortresses everywhere (including my own as I was testing the color additions, did see the color of vomit nicely though) may be the low cost. In fact I should think that since they are the least expensive plants around, the game just gets you a large amount of tarnish everything by default. It may be poisonous and cause untold grief, but it's such a bargain.
So keeping that in mind, if any more poisonous plants are so deadly nobody wants them and they cost 0, you can guess what most expedition leaders stocking up a wagon will choose to do...