Die disseldoring (Berkheya chamaepeuce) is 'n boom wat voorkom in Noord-Kaap en Namibië. Die boom se nasionale nommer is 742. Alfabetiese lys van Suid-Afrikaanse bome https://www.treetags.co.za/national-list-of-indigenous-trees/ http://redlist.sanbi.org/species.php?species=3077-28 http://www.kyffhauser.co.za/Plants1/Berkheya_chamaepeuce/Image2.htm https://www.ispotnature.org/communities/southern-africa/view/observation/312440/tree-thistle-thorn-disseldoring