Gunniopsis septifraga, commonly known as green pigface,[2] is a species of flowering plant in the iceplant family, Aizoaceae and is endemic to Australia.

It is a prostrate to tuft-forming annual herb, with oblong to lance-shaped leaves and small greenish flowers, that grows around salt lakes.

The flowers are arranged singly and sessile, or on a short pedicel, with the perianth 2.5–6 mm (0.098–0.236 in) long and fused for about one-third of its length with four triangular lobes.

Flowering occurs from July to October and the fruit is a capsule that is more or less spherical with a cylindrical tip, and contains wrinkled, white to transparent, comma-shaped seeds.

[3][4][5][6] This species was first formally described as Gunnia septifraga by Ferdinand von Mueller in 1859 in Report on the Plants Collected During Mr. Babbage's Expedition into the North West Interior of South Australia in 1858, presented to the Parliament of Victoria.