Question: Are Witch-hazel and Bikkia endemic to North America?
Sentence (from "Witch-hazel"): Witch-hazels ("Hamamelis," ) are a genus of flowering plants in the family Hamamelidaceae, with four species in North America ("H. mexicana", "H. ovalis", "H. virginiana", and "H. vernalis"), and one each in Japan ("H. japonica") and China ("H. mollis").
Relevant evidence: Yes