Aizoon secundum

Aizoon secundum, the onesided galenia, is a species of flowering plant native to southern Africa, including Botswana, Namibia, and South Africa. It is naturalized in Australia, Spain, and the United States. In Spain and Australia, is considered an invasive weed threatening native vegetation.
Aizoon secundum is shrub or perennial herb with grayish-white stems that trail along the ground for as much as 60 cm, forming mats. Leaves are grayish-white, folded inward, up to 2.5 cm long. Flowers are small, white to yellowish, up to 2 mm in diameter, often hidden by the leaves.