"I know pine trees are coniferous," Sam replied, a touch ruefully as he too glanced outside, hoping to catch a glimpse of some species of flora or fauna that would, if not conjure up some long-forgotten lesson, at least tweak his memory. What use being well traveled if one cannot piece together one's location? "But nothing much beyond that. I can find my way in a forest well enough, but tell what tree grows where? Wish I'd taken more interest."

Plants useful in warding off malevolent entities likely weren't the sort of information she was looking for, he imagined.