What does pappus mean?
Pappus is a specialized botanical noun for a tuft of fine hairs, bristles, or scales associated with a fruit. Its best-known example is the feathery crown on a dandelion fruit, which helps the fruit and its enclosed seed remain aloft and travel in the wind. In the daisy family, Asteraceae, the term has a more precise application: it names the calyx modified into bristles, hairs, or scales at the summit of the individual fruit. Depending on the species, this structure may form a conspicuous crown, a delicate halo, or a sparse ring. Although pappus occurs in botanical descriptions, paleobotany, and the technical naming of fruits, it is not ordinary everyday vocabulary for fluff or hair. Recognizing it provides a precise term for a small structure with an important functional role, helping explain how wind-dispersed plants are built and identified.
nounA pappus is a tuft of fine hairs, bristles, or scales borne on a fruit, often functioning in wind dispersal. In the daisy family (Asteraceae), it is the specialized calyx of the individual fruit, which may form a ring, crown, or tuft.
- A tuft of fine hairs or bristles associated with a fruit, typically helping it to be carried by the wind.
- In the daisy family (Asteraceae), the modified calyx of the individual fruit, appearing as a ring, crown, or tuft of hairs, bristles, or scales.
"The dandelion's seeds drift away attached to their feathery pappus."
"The dandelion's seeds drift away attached to their feathery pappus."
"The botanist described a ring of fine bristles around the fruit as its pappus."
The plural pappi is standard in botanical and taxonomic writing.
"The pappi on the dandelion fruits opened into feathery structures."
A dandelion's familiar parachute is built around a pappus, the feathery structure that catches the air.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does pappus come from?
The English word entered through New Latin from Latin pappus, which was itself borrowed from Greek pappos. Latin already used pappus for a tuft or mass of hairs or down, and the term was retained in the developing botanical vocabulary of English.
Related word forms
How pappus is actually used
This is specialized botanical terminology rather than everyday vocabulary. In descriptions of the daisy family, it refers specifically to the modified calyx of the individual fruit, not to the entire fruit.
Easily confused with pappus
A pappus is a botanical tuft of hairs or bristles, whereas papyrus is an aquatic plant or the writing material made from its stem.