[ Has Ardbert no doubt assisted someone with venturing into a dangerous environment to find some rare and yet useful herb for creating a healing salve or other item of use? Yes. But 1) it was ages ago by now and 2) that still doesn't make him an expert. To him, Nanu's drawing just looks like any other plant.

However, the mentions of "back home" from the stranger at least solidifies that he is a passenger rather than a denizen. ]

I think it's a fair idea, but we have no way of identifying which plants here would be useful and which wouldn't. Or at least, I don't. [ He offers a sheepish smile and shrugs his shoulders. ] If we asked those working at the clinic, mayhap they could lead us in the right direction?