| 单词 | vexil | 
| 释义 | vexiln.  The large erect upper petal of a papilionaceous flower; a vexillum (vexillum n. 2). ΘΚΠ the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > 			[noun]		 > parts of > petal > of particular shape or position keel1597 vexillum1703 standard1725 ala1731 wing1776 banner1785 vexil1813 winglet1855 keel-petal1876 pterygium1896 1813    J. M. Good et al.  Pantologia at Botany  				Vexil, or Standard, a petal covering the rest, incumbent, greater, plano-horizontal, inserted by its claw in the upper margin of the receptacle, approaching to a circular figure when it leaves the calyx, and nearly entire. 1868    W. H. Harvey Genera S. Afr. Plants 		(ed. 2)	 66  				Calyx equally 5-fid, lobes pungent. Vexil villous. 1978    Econ. Bot. 32 57/1  				Flowers sessile, small, white,..petals 5, glabrous, 5 mm long, the vexil emarginate. 2003    Castanea 68 254  				Distinction among the three varieties has relied upon morphological characteristics, including..length of vexil. This entry has been updated (OED Third Edition, June 2017; most recently modified version published online December 2021). < | 
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