endogen

/ˈɛndədʒən/
noun
  1. A plant that grows from within, such as a monocotyledon, with stems that increase in size by internal growth.
    • Botany students learned that an endogen like a palm tree does not have the same ring structure as an oak.
    • The teacher explained that grasses are endogens because their stems grow from the inside.
    • Unlike an exogen, an endogen does not add new layers of wood on the outside each year.
Antonyms
What does "endogen" mean? | whatsthatwordmean | whatsthatwordmean