Utricularia rigida

An unusual rheophytic bladderwort from West Africa that clings to sloping rock faces in fast-flowing water, much like the river-weeds (Podostemaceae). It is very rarely, if ever, grown, and nothing is published on its cultivation. Growing it would mean imitating a warm, sunny, well-oxygenated rapid, probably with a seasonal drop in flow.

At home, aim for

Day Warm-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Humid airBand in Plantistry

Light Full sunDLI and PPFD in Plantistry

Expects a seasonal restAquatic

Where it grows wild

A rheophyte on inclined rock faces in swiftly running water. Herbarium labels mention streams and waterfalls in gallery forest and deciduous forest valleys, and rock in submontane savanna in Guinea.

Near sea level to about 1,250 m. Specimen elevations seen are 23–910 m in Guinea.

GuineaGuinea-BissauSierra LeoneCôte d'IvoireSenegalMaliNigeriaBenin

🔒 Growing it like that

The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:

✓ Day and night temperature targets, and the limits it tolerates

✓ Humidity band, and how to hold it

✓ Light as DLI and PPFD for a grow light

✓ Wet and dry seasons, and whether to rest it

✓ Substrate and airflow

✓ A step-by-step setup to grow it like the wild

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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.