Ludwigia peruviana
Peruvian primrose-willow is a large, shrubby wetland plant with bright yellow four-petalled flowers, native across much of tropical and subtropical America. It grows in full sun with its roots in mud or shallow water; it is a serious invasive weed in Florida, the south-eastern US and Australia, so never let it escape.
Where it grows wild
Marshes, ditches, lake and river margins, wet pastures and swampy ground, rooted in saturated mud or shallow water and often forming dense shoreline thickets. It grows as an emergent shrub up to about 3.7 m.
Recorded from 9 to about 2,930 m, median about 900 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 3.0 licence, unmodified.