kidneywort

[ kid-nee-wurt, -wawrt ]
/ ˈkɪd niˌwɜrt, -ˌwɔrt /

noun

the navelwort, Umbilicus rupestris, of the stonecrop family, having drooping yellowish-green flowers.

Origin of kidneywort

1630–40; kidney + wort2, from its use in treating kidney ailments