They had no roots and didn't care which solid objects secured them, sand, shells, husks, or pebbles; they didn't ask their hosts for sustenance, just a point of purchase.
Dépourvues de racines, indifférentes au corps solide, sable, coquillage, test ou galet, qui les supporte, elles ne lui demandent qu'un point d'appui, non la vitalité.