In the central Herero emergence narrative, the first human couple and their cattle came out of the omumborombonga, the leadwood tree (Combretum imberbe) said to stand between the Kaokoveld and Ovamboland. The woman of this primordial couple is recorded under the names Kamangarunga or Kamungarunga, wife of the first man (Kamangundu, or Mukuru 'the Old One'). From her sprang the Herero and, in some versions, the Ovambo, Nama, and Tswana peoples, making her the mythic ancestress of the matrilineal descent lines (omaanda) central to Herero social organization. Herero travellers traditionally greeted leadwood trees with respectful words and offerings of twigs in memory of this ancestral origin.