VEXILLAR
Etymology
Adjective
vexillar (comparative more vexillar, superlative most vexillar)
Of or relating to an ensign or standard.
(botany) Of or relating to the vexillum, or upper petal of papilionaceous flowers.
Source: Wiktionary
Vex"il*lar, Vex"il*la*ry,Etym: [Cf. F. vexillaire, L. vexillarius a
standard bearer.]
1. Of or pertaining to an ensign or standard.
2. (Bot.)
Definition: Of or pertaining to the vexillum, or upper petal of
papilionaceous flowers. Vexilary æstivation (Bot.), a mode of
æstivation in which one large upper petal folds over, and covers, the
other smaller petals, as in most papilionaceous plants.
Source: Webster’s Unabridged Dictionary 1913 Edition