Rivina humilis L.

Mayotte : Rivina humilis flowers and fruits all year long.
Reunion : Rivina humilis produces flowers and fruits all year long.

Rivina humilis is a plant of the wet tropics, found in forests, thickets, on roadsides, and disturbed areas at elevations from sea level to 1700 m.

Mauritius : A common species at low altitude along the coast.
Mayotte : Rivina humilis is an exotic species, sometimes cultivated for ornamental purposes, naturalized in the hygrophilous forests, in particular around Mount Combani.
New Caledonia: Rivina humilis grows on moist soils in shady environments. It is frequently found in the undergrowth (humid forest, humid forest on limestone) along fields and in secondary areas.
Reunion: A common species at low altitude in the eastern part of the island, in a shady and humid situation, especially in thickets of Leucaena leucocephala.
South Africa: It can be found in forests, along riverbanks and in urban spaces.

Local harmfulness

Mauritius: Rivina humilis is present, but does not occur as a crop weed.
New Caledonia: Rivina umilis is a minor pasture invader, but its cumulative presence with other minor weeds constitutes a community of low or no palatable species whose abundance contributes to pasture degradation.
Reunion: This species has been introduced but is not present in cultivated areas. It can be found in towns and cities on the edges of fences, in poorly tended gardens and on wasteland.
South Africa: Rivina humilis competes with native species.

Herbarium pictures ReCOLNAT: https://explore.recolnat.org/search/botanique/simplequery=Rivina%2520humilis