Apomictical is a term used to describe the reproduction of an organism without the need for fertilization. It is a relatively uncommon word that may be unfamiliar to most people. If you need to convey the same concept, here are a few synonyms you could use: agamic, asexual, autonomous, self-fertilizing, self-reproducing. These words all describe organisms that can reproduce without the aid of another organism. They do not require fertilization and can produce offspring that are identical to the parent. Despite being somewhat obscure terms, each of these words can convey the same meaning as apomictical, and may be more readily understood by your audience.