Myrmecodia lamii is a myrmecophilous (Ant loving) plant in the Gardenia Family (Rubiaceae) and native to New Guinea, with a greatly swollen hypocotyl region containing numerous tunnels and chambers utilized by certain species of ants as a colony.

This hypocotyl can measure up to 70 centimeters (27.5 inches) in height by up to 45 cm ( 17.75 inches) in width; by far the largest known hypocotyl.

[1] The total height of the plant, including the blak and white ringed branches, comes to four feet (120 centimeters).

The flowers are white or pale blue.

This Rubiaceae article is a stub.