Bot. a group or tuft of prongs, bristles, scales, or simple or branched hairs, as on the achenes of the dandelion, forming the modified calyx of the composite and certain other families and serving in the dispersal of the fruit
Origin of pappusModern Latin from Classical Latin from Classical Greek pappos, old man, grandfather (see papa), hence substance resembling gray hairs
A modified calyx, composed of scales, bristles, or featherlike hairs, in plants of the composite family, such as the dandelion and the thistle.
Origin of pappusLatin old man, down on certain seeds from Greek pappos ; see papa in Indo-European roots.