I will admit to being anal on this one. In the first instance, I majored in Botany, Zoology and English. In the second instance, I have worked in landscape architecture. I do happen to know my flora and fauna. What jumps me out of a story with record speed is when the attention to detail is not paid. A Spring flower is so because it responds to temperature and light levels. A Summer flower is also so restricted. The two do not co-exist. They cannot co-exist in nature. Research into settings is everything.