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Species library › Utricularia › Utricularia dimorphantha
Carnivorous Partly documented

Utricularia dimorphantha

A free-floating aquatic bladderwort found only in Japan, where it grows suspended in ponds, marshes and irrigation water in central and northern Honshu. It is a rootless perennial that traps tiny aquatic animals in bladders along its submerged stems, and it needs cool, clean, soft water and a cold winter.

Utricularia dimorphantha
Photo: fischermans, CC BY-SA 3.0, via Wikimedia Commons
At home, aim for
Day IntermediateTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Dry airBand in Plantistry
Light Full sunDLI and PPFD in Plantistry
Expects a seasonal restAquatic

Where it grows wild

Suspended in still or very slow water of ponds, bog pools, marshes and old paddy-side ditches, usually among other aquatic plants. It is rootless and does not anchor in the sediment. Specific microhabitat detail beyond 'in the water' is thin in the sources checked.

No elevations were recorded on the specimens checked. The records come from lowland and low-mountain ponds in Honshu and Hokkaido between about 35° and 39° N.

Japan: northern Honshu (Tohoku: Akita, Yamagata, Iwate)Japan: central Honshu (Niigata, Shiga, Kyoto, Nara)Japan: Hokkaido (few records)

🔒 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. Photo from Wikimedia Commons, used under its CC BY-SA 3.0 licence, unmodified.