Crown of thorns is a cactus-like interior plant with oval leaves and brightly colored flowers. It requires little watering, but the numerous thorns along its branches are a potential liability.
| Plant Form: | upright |
| Height: | 1 - 5 feet |
| Spread: | 2 feet |
| Foliage: | cactus-like, succulent branches which are armed with significant thorns oval leaves which drop seasonally |
| Flower: | small, two-petaled flowers in red, pink, orange, or yellow |
| Bloom Period: | Fall - Winter |