We don't have to be completely scientifically accurate, but I will still cringe a bit inside if there are any fungus conjurations. Fungi are biologically more similar to animals than plants, from what I understand. For instance, they do not use photosynthesis and they do sometimes eat meat. Of course for some reason we gave Fungi a special word for their eating: Decomposition, as if it was happening on its own and not part of the fungi digestion process.
They just *have* to all be rooted creatures and not conjurations. Many of them will be poisonous to the touch, or to those who destroy them. Many of them should have Decompose Devour. Maybe the poisonous to the touch thing could be represented by innate damage barriers, and other effects that would set off when the fungi is touched.
Having them be rooted creatures also makes more sense thematically IMO because then you can teleport those faerie summon circles that are made of fungus. You could also attach them to a fog bank or something to prevent an opposing non-flying creature from walking through it without taking a poison attack.
As for blood thirsty and plants...I wonder if it could also be referred to as "sap thirsty."