Bothriochloa is a common and widespread genus of plants in the grass family native to many countries on all inhabited continents and many islands.
 They are often called beardgrass or bluestem.
Phillyrea is a genus of two species of flowering plants in the family Oleaceae, native to the Mediterranean region, and naturalized in the Canary Islands and Madeira.

Question: Phillyrea and Bothriochloa, are a genus of what?
Answer: plants