Andrachne is a genus of flowering plants in the family Phyllanthaceae, order Malpighiales, first described by Linnaeus in 1753. It belongs to the tribe Poranthereae, one of eight genera within that grouping. Members of the genus are monoecious herbs or subshrubs — plants bearing separate male and female flowers on the same individual — typically small and low-growing in habit.
The genus is adapted to harsh, dry conditions, with its species native to semideserts and desert margins across a wide but fragmented range: the Americas, southern Europe, North Africa, and South Asia. This distribution reflects a tolerance for arid or seasonally dry substrates and poor soils rather than any single continuous range.
Notable species include Andrachne telephioides, the most widespread member, found across the Mediterranean basin and into South Asia, and Andrachne aspera, recorded from North Africa and the Middle East.
Etymology
The genus name Andrachne was adopted by Linnaeus from the ancient Greek writer Theophrastus, though it is not certain to which plant Theophrastus originally applied it. The Greek word ἀνδράχνη (andrákhnē) can mean either "common purslane" (Portulaca oleracea) or "wild strawberry" (Fragaria vesca).
Distribution
Andrachne species occur in semideserts and desert margins across a disjunct global range: the Americas, southern Europe, North Africa, and South Asia. The distribution suggests adaptation to arid and semi-arid habitats with poor or rocky soils.
Taxonomy Notes
Andrachne was described by Linnaeus in 1753 and is placed in the tribe Poranthereae within the family Phyllanthaceae (order Malpighiales). Phyllanthaceae was formerly treated as a subfamily of Euphorbiaceae; the segregation is now well-established. Andrachne is one of eight genera in Poranthereae.
