LIGULE
ligule
(noun) (botany) any appendage to a plant that is shaped like a strap
Source: WordNet® 3.1
Etymology
Noun
ligule (plural ligules)
A strap-shaped structure.
(botany) A portion of a leaf found at the base of the petiole, when present.
(botany) In many grasses (Poaceae) and some sedges (Cyperaceae), the membranous appendage or ring of hairs projecting from the inner side of a leaf at the junction between the blade and the sheath.
Source: Wiktionary
Lig"ule, n. Etym: [L.ligula, little tongue, dim of lingua tongue :
cf. F. ligule.]
1. (Bot.)
(a) The thin and scarious projection from the upper end of the sheath
of leaf of grass.
(b) A strap-shaped corolla of flowers of Compositæ.
2. (Anat.)
Definition: A band of white matter in the wall of fourth ventricle of the
brain.
Source: Webster’s Unabridged Dictionary 1913 Edition