seta

pappus: an appendage of the cypsela (fruit) of the Asteraceae consisting of one to many bristles, awns, scales, setae, or coronas that assists in seed dispersal
The word pappus might bring to mind dandelions and the “puff ball” seed heads you may have played with in your youth. However, if the word conjures up the silky “parachutes” of milkweed, think again.