1) Asterid dicot genus 2) Genus nauclea 
==Cultivation and use== Nauclea diderrichii is a large tree from West Africa that is widely cultivated elsewhere. Its wood is resistant to borers and is used at harbors and in other places where wood is in constant contact with water. In 2013, researchers reported that samples of Nauclea latifolia were found to contain the opioid analgesic tramado...
[n] - small genus of evergreen tropical shrubs or trees with smooth leathery leaves
genus Nauclea noun small genus of evergreen tropical shrubs or trees with smooth leathery leaves