Question: What fern was the inspiration for a legendary zoophyte that was once believed to grow sheep as its fruit?
Sentence (from "Vegetable Lamb of Tartary"): The Vegetable Lamb of Tartary (Latin: "Agnus scythicus" or "Planta Tartarica Barometz") is a legendary zoophyte of Central Asia, once believed to grow sheep as its fruit.
Relevant evidence: Yes