Large cactus to about 4 m high, often with thick cylindric trunk, drooping habit on larger plants. Each stem segment grows to about 30 cm long, is flattened, egg-shaped (can be elongated), attached at the pointy end. One or two spines emerging from holes in the segments. Yellow flowers up to 9 cm diameter with red tinges on margins of stem segments. Fruit up to 7.5 x 3.5 cm, fleshy, reddish purple.
Terrestrial. Sandy beaches and coastal places.
People, birds, soil movement, vegetative spread and seed.
Competes with native plants, can form monocultures in dry areas.
Caution: when using any herbicide or pesticide PLEASE READ THE LABEL THOROUGHLY to ensure that all instructions and safety requirements are followed.