The word of the day is sessile:
< Latin sessilis sitting down, dwarfed, stunted, < sess- , participial stem of sedēre to sit
1. Having no footstalk.
Of leaves, fruits, flowers, or other organs: Immediately attached by
the base; not having a peduncle, pedicel, or the like. Hence of a
species or variety (e.g. of oak) bearing sessile fruits: opposed to pedunculated.
Of limbs or organs: Immediately in contact with the structure to which
they are attached; having no connecting neck or footstalk. Also of
certain animals.c. Pathol. Of morbid growths, warts, etc.: Adhering close to the surface.
2. Of certain animals: Sedentary, fixed to one spot; not ambulatory. Of cells: Immobile. Also in extended use.
3. Crystallogr. Of a dislocation in a crystal: unable to migrate through the lattice; fixed. (OED)
"This is ridiculous! Hive queens are supposed to be sessile!"
- Tarvek, Girl Genius volume 12, page 103, Phil and Kaja Foglio