You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "Between the Buddleja and Cleyera genus plants, which is comprised to the most number of species?" whose answer is Buddleja.
Each document should contain about 30 words, and these documents should contain useful information.

Query: number of species in Buddleja genus
Useful Output:

Doc 1: Species ca. 100 (10 in the flora). Buddleja species, especially Asiatic ones, are cultivated widely for their attractive flowers and leaves
Doc 2: There are more than 140 species of Buddleja native to tropical and subtropical areas of the world. In common nomenclature, the plant is called butterfly bush.
Doc 3:  substances. The Genus Buddleja have more than 100 species, many of them are distributed …
Doc 4: There are many species in the genus Buddleja (over 140 species endemic to Asia, Africa, and the Americas). The story of the genus's name is
Doc 5: A nectar power-plant. A member of the figwort family (along with foxgloves, toadflaxes and speedwells), there are 140 species of buddleia