last pic real current event Jan 2021.
vexillum |vekˈsiləm|
noun (plural vexilla |vekˈsilə| )
1 a Roman military standard or banner, especially one of a maniple.[Latin, from vehere ‘carry.’]
• a body of troops serving under one standard.
2 Botany the standard of a papilionaceous flower.
3 Ornithology the vane of a feather.
papilionaceous |pəˌpilēəˈnāSHəs|
adjectiveBotany
relating to or denoting leguminous plants of a group (subfamily Papilionoideae or family Papilionaceae) with flowers that resemble a butterfly.
ORIGIN
mid 17th century: from modern Latin Papilionaceae (plural), based on Latin papilio ‘butterfly,’ + -ous.