Spinach: New Zealand

Tetragonia tetragonioides, commonly called New Zealand spinach, warrigal greens or by its Māori name of Kōkihi, is a flowering plant in the fig-marigold family (Aizoaceae). It is often cultivated as a leafy vegetable.

It is a widespread species, native to eastern Asia, Australia, and New Zealand. It has been introduced and is an invasive species in many parts of Africa, Europe, North America, and South America. Its natural habitat is sandy shorelines and bluffs, often in disturbed areas. It is a halophyte and grows well in saline ground.

The plant has a trailing habit, and will form a thick carpet on the ground or climb through other vegetation and hang downwards. It can have erect growth when young. The leaves of the plant are 3–15 cm (1.2–5.9 in) long, triangular in shape, and bright green. The leaves are thick, and covered with tiny papillae that look like waterdrops on the top and bottom of the leaves. The flowers of the plant are yellow, and the fruit are small, hard capsules each with 4–10 horned seeds.