propagule

https://doi.org/10.1351/goldbook.14958
  1. Portion of a plant, fungus, etc., that is capable, when detached, of giving rise to a new individual by asexual reproduction (e.g., a cutting, leaf bud, bulbil, seed, or spore).
  2. Less commonly, any of the products of asexual reproduction in certain invertebrates.
Source:
PAC, 2009, 81, 829. (Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)) on page 932 [Terms] [Paper]