Label source: Used by the bushmen as an antidote to the poison of an insect known as Ngwa or Kaa. Flower and leaf - and section of root. Used as antidote to Ngwa or Kaa - the grub with the entrails of which they poison their arrows - they first scarify t, he wound then chew the root and rub it on and afterward apply grease - they have hitherto denied this or striven to mislead while men who enquired on the subject but yesterday, Chapman, after questioning them in every possible form said sharply to one of, them `and what do you call the Kala haetlwe` - he was evidently taken by surprise and confessing that the white men knew everything, went and brought the plant. Dec 3rd, SW of Lake Ngami.