SINCE 1828
papilionaceous
adjective
pa·pil·i·o·na·ceous
| \ pə-ˌpi-lē-ə-ˈnā-shəs
\
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Definition of papilionaceous
: 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
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