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Example(s): Example sentences from FNA :  pappi of 4–8 straight, barbellate to barbellulate bristles or setiform awns 2.5–5.5 mm, shorter than disc corollas.  pappi persistent, of 20–35, unequal, barbellulate, stramineous, some apically ± clavate bristles in (1– )2 series.
- Categorical Glossary for the Flora of North America Project, by Robert W. Kiger and Duncan M. Porter. 2001. Hunt Institute for Botanical Documentation.