"Identifying the mimic plants from real threats. That one," he pointed to a plant that looked like lilies of the valley, until you saw there were tiny white teeth along the inside of the flower's bell, "bites and then buries its bits in you. It'll dig right under your skin until it gets to your marrow, and then pollinates." He shuddered, though grinning. "It's an awful sight, but the flowers are lovely. It's used as a torture device in some places."