Yeah - my first toon was a LW so I always thought of getting herbs out of plant monsters as "skinning" them, albeit, as noted, with quotes.
I didn't know if you ever could get herbs from them, but they are elementals, so theoretically, you can.
I was wondering if anyone had ever noticed and complained about this simply because they're the last mob you can kill to grind to exalted with Spore and I'd like to be able to, as a herbalist, get the herbs along with the faction/XP while grinding them (yeah, I'm being greedy - so what?).