Echinopsis atacamensis has a tall columnar habit, sometimes forming branches and becoming treelike.
It grows to about 10 m (33 ft) high, with stems to 70 cm (27.6 in) across.
The stems have 20-30 ribs and areoles with 50-100 maroon coloured spines, the longest up to 30 cm (12 in) long.
The rose-white flowers are 10–14 cm (3.9–5.5 in) long, borne on the sides of the stems.
The dark green fruits are densely covered with hairs, up to 5 cm (2.0 in) long; they are edible.
Echinopsis atacamensis has a tall columnar habit, sometimes forming branches and becoming treelike. It grows to about 10 m (33 ft) high, with stems to 70 cm (27.6 in) across. The stems have 20-30 ribs and areoles with 50-100 maroon coloured spines, the longest up to 30 cm (12 in) long. The rose-white flowers are 10–14 cm (3.9–5.5 in) long, borne on the sides of the stems. The dark green fruits are densely covered with hairs, up to 5 cm (2.0 in) long; they are edible.
Echinopsis atacamensis