Read the following premise and answer if the hypothesis is true.
Buddleja alata is endemic to western Szechuan, China, growing at elevations of 1,300–3,000 m; it was first described and named by Rehder and Wilson in 1913. Leeuwenberg found the plant to be such a perfect intermediate of "Buddleja albiflora" and "Buddleja nivea" as to consider it a hybrid of the two species.
Hypothesis: Buddleja alata is a poisonious plant. . Is the answer "Yes", "No", or "It's impossible to say"? Respond with only the answer and no additional text.
No
It's impossible to say. Buddleja alata's toxicity is not mentioned in the provided information.