glue

Gumbo-limbo or copperwood Bursera simaruba with detail of flowers and peeling bark

Blue mussels Mytilus edulis with byssal threads on wooden piling.  Illustration includes barnacles and limpets, and some bladder wrack seaweed.  Illustration from “30 Animals that made us smarter” by Patrick Ayree (BBC Books).

Sundew Drosera rotundifolia with basal rosette of leaves and emerging flowering spikes

Soybean Glycine max with pods and one flower