''Amaranthus muricatus'', the so-called African amaranth, is a species in the genus ''

Amaranthus ''Amaranthus'' is a cosmopolitan genus of annual or short-lived perennial plants collectively known as amaranths. Some amaranth species are cultivated as leaf vegetables, pseudocereals, and ornamental plants. Catkin-like cymes of densely pac ...

'' native to South America; Bolivia, Paraguay, Argentina and Uruguay. It is an invasive species in Africa, Europe and Australia, and to a lesser degree in North America and Asia. It is a decumbent perennial that does well in arid climates. ''A. muricatus'' may grow to about 60 cm tall. Its glabrous leaves are linear to lanceolate, about 2-5 cm long, with long petioles. Small flowers are produced on compact, pyramidal panicles. These flowers, which appear in summer and fall, produce wrinkled achenes, about 2 mm long, containing semiglossy, black, lenticular seeds that are typically 1-1.2 mm in diameter.

References

{{Taxonbar, from=Q5671840 muricatus Plants described in 1881