pa·pil·i·o·na·ceous adjective \pə-ˌpi-lē-ə-ˈnā-shəs\
: having a corolla (as in the bean or pea) with usually five petals that include a large upper petal enclosing two lateral wings and a lower carina of two united petals
Origin of PAPILIONACEOUS
Latin papilion-, papilio
butterfly — more at pavilion
First Known Use: 1668
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