Today I investigated threads hanging from the ceiling in my bathroom, each ca. 5cm long. They started appearing in the weeks after a recent water damage in an apartment above. At first I thought they are part of the installation, but upon close inspection they look like parts of plants. I took pictures of one, with the bottom end showing something like blossoms, dead:
Small specimen, ca. 1cm long, hanging from the ceiling, and “sprouts”:
The apartment is in Gran Canaria, in front of the sea. The bathroom is on the inside, and it basically has no natural light.