Webster's Revised Unabridged Dictionary · 1913

Foliar

Foliar , adjective

(Botany) Consisting of, or pertaining to, leaves; as, foliar appendages.
Collocations (2)
Foliar gap (Botany) , an opening in the fibrovascular system of a stem at the point of origin of a leaf.
Foliar trace (Botany) , a particular fibrovascular bundle passing down into the stem from a leaf.