adventitious form

例句：

1. 1. The plant's adventitious form is unique to this species.
   这种植物的无性系形态是独特的。
2. 2. Apomictic plants are able to reproduce without the aid of sexual reproduction.
   无性系植物能够通过无性繁殖进行繁殖。
3. 3. In nature, apomictic plants often have more genetic diversity than their sexually reproducing counterparts.
   在自然界中，无性系植物往往比它们的有性繁殖对应物具有更多的遗传多样性。