pappus

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pap·pus

(pap'ŭs),
The first downy growth of beard.
[G. pappos, down]
Farlex Partner Medical Dictionary © Farlex 2012

pappus

(păp′pŭs) [L.]
The first growth of beard hair appearing on the cheeks and chin as fine, downy hair.
Medical Dictionary, © 2009 Farlex and Partners

pappus

a circle of hairs formed from a modified CALYX found on the seeds of plants of the family Compositae, for example dandelion and thistle seeds. The pappus assists in the dispersal of the seeds by wind, acting as a kind of parachute.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005