Great masterwort is the common name of several flowering plants of the genus Astrantia, including:
Astrantia is a genus of herbaceous plants in the family Apiaceae, endemic to Central, Eastern and Southern Europe and the Caucasus.
 There are 8 or 9 species, which have aromatic roots, palmate leaves, and decorative flowers.
 They are commonly known as great masterwort or masterwort which may also refer to other plants, particularly the unrelated "Peucedanum ostruthium".
A lime (from French "lime", from Arabic "līma", from Persian "līmū", "lemon") is a hybrid citrus fruit, which is typically round, lime green, 3 – in diameter, and contains acidic juice vesicles.

Question: Are both Astrantia and Lime a genus of plants?
Answer: no