Linked from
The 10 pages that link to Trichome, each with the reason it gives.
BasilRelated: Glandular trichomes on basil leaves store and release aromatic oils.
BromeliaceaeRelated: Specialized leaf scales absorb water and nutrients in many bromeliads.
BoraginaceaeRelated: Dense trichomes account for the rough or bristly leaves common in Boraginaceae.
Salvia officinalisRelated: Glandular trichomes on sage leaves store aromatic secretions.