aciculate

Definition: 

A seta furnished with slender needle-like processes along the stem; the processes are somewhat flexible but often appear to be rigid.

Synonyms: 
branched hair, laterally branched hair, plumose hair, spiculate seta
Vestiture: 
aciculate
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith