Aizoon secundum, the onesided galenia, is a species of flowering plant native to southern Africa, including Botswana, Namibia, and South Africa (Cape Provinces, Free State, and Northern Provinces).

[1] It is naturalized in Australia (Western Australia, Victoria, Tasmania and New South Wales), Spain, and the United States (Florida and New Jersey).

[2][3][4][5][6] In Spain and Australia, is considered an invasive weed threatening native vegetation.

[7][8] Aizoon secundum is shrub or perennial herb with grayish-white stems that trail along the ground for as much as 60 cm, forming mats.

Flowers are small, white to yellowish, up to 2 mm in diameter, often hidden by the leaves.