Something that feels inspired heavily by Octavia Butler, Semiosis starts with a very interesting premise and continues through generations of human colonists on an alien planet. However, each chapter introduces a new generation, thus abandoning characters and attachments introduced before. In the end it simply feels too clinical, with characterization lacking luster, while still remaining a captivating read.
The plot centers around a human colony on a distant alien planet. There are only a few dozen people and, with some equipment failures, they find themselves at the mercy of the world's inhabitants. Which are intelligent plants! It is a very interesting premise and both the generational span of the story and the cold calculations of different species that must coexist despite their massive differences reminded me a bit of Xenogenesis. However, Sue Burke didn't have the cruelty required to thoroughly violate her characters that Butler had, so in the end the mood was more positive, perhaps reminiscent of '60s sci-fi, with lots of deliberations and rational arguments as a major part of the story.
Bottom line: I liked the book. Could have been better, but as a debut it's pretty good. I will probably read the second book sooner or later, because the world of Pax is so full of potential, however I do believe Semiosis can be taken as a standalone story without the need for a continuation.