Question: What is is a genus of plants in the pea family, Fabaceae, Tansy or Amorpha ?
Sentence (from "Amorpha"): The name "Amorpha" means "deformed" or "without form" in Greek and was given because flowers of this genus only have one petal, unlike the usual "pea-shaped" flowers of the Faboideae subfamily.
Relevant evidence: No