polysepalous
/ˌpɒlɪˈsɛp(ə)ləs/ /ˌpɒlɪˈsiːp(ə)ləs/Botany
adjective
Of a calyx or involucre: having the parts (sepals or bracts) separate, not united. Opposed to gamosepalous, monosepalous.
Origin
Early 19th century. From poly- + sepal + -ous, after French polysépale (N. J. Necker Phytozool. philos. 56).