Crown of thorns
The crown of thorns is most likely named for it’s long thorns and deep red ‘flowers’ resembling drops of blood.


Crown of thorns is likely named for the plant’s long thorns and deep, red ‘flowers’ that resemble drops of blood. The plant is native to Madagascar.
It was first introduced to Israel after the time of Jesus. Therefore, the name is simply due to its appearance and does not have any connection to the crown of thorns worn by Jesus.
Like poinsettia, crown of thorns belongs to the Spurge family. As with poinsettia, the actual flowers are very small and yellow. What looks like blood-red flower petals are actually leaves that sit just below the flowers and make a striking contrast to the normal leaves.
Fact box:
- Greenhouse location: Tropican house
- Danish name: Kristi tornekrone
- Latin name: Euphorbia milii
- Family: Spurge family / Euphorbiaceae
- Natural habitat: Madagascar