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Species library › Asplenium › Asplenium dubium
Ferns Little published: much of this is inferred from related species

Asplenium dubium

An uncertain name: GBIF matches 'Asplenium dubium' to a fossil described by Fontaine in 1889, and no checklist distribution for a living species is available. The only record is from Paraguay; this profile treats it generically as a subtropical forest spleenwort and should be regarded as provisional.

At home, aim for
Day IntermediateTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Humid airBand in Plantistry
Light ShadeDLI and PPFD in Plantistry
No rest periodGrows in the ground

Where it grows wild

No reliable habitat information. The one record lies in subtropical semi-deciduous forest in Paraguay, and it is treated as a forest shade fern.

The single record is at about 340 m.

Paraguay

🔒 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.