Ludwigia perennis
Despite the name, usually a short-lived annual or weakly perennial herb of seasonally wet ground across the Old World tropics, from West Africa to northern Australia. It grows fast in the wet season, sets seed, and survives the dry season as seed. In cultivation it is a bog or pond-margin plant.
Where it grows wild
Seasonally flooded ground: swamp and lagoon margins, wet grassland, rice fields, ditches and the edges of pools.
Mostly lowland; records run from 2 to about 1,230 m, median 134 m.
🔒 Growing it like that
The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:
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Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app. Photo from Wikimedia Commons, used under its CC BY-SA 4.0 licence, unmodified.