eucalyptus gum: reddish-brown dried gummy exudation from any of several trees of the genus Eucalyptus especially Eucalyptus camaldulensis
gum: any of various substances (soluble in water) that exude from certain plants; they are gelatinous when moist but harden on drying
cock's eggs: weedy vine of Argentina having solitary white flowers followed by egg-shaped white or yellow fruit