Asplenium inexpectatum

A very rare natural spleenwort hybrid (Asplenium ×inexpectatum) that E. Lucy Braun found in Ohio, and that Morton validly named in 1957. It has no wild GBIF records. Like other small eastern North American rock spleenworts, it is a plant of shaded rock ledges in a climate with cold winters.

At home, aim for

Day Cool-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Ordinary room humidityBand in Plantistry

Light ShadeDLI and PPFD in Plantistry

Expects a seasonal restGrows on rock (lithophyte)

Where it grows wild

Likely grows on shaded, moist rock ledges and outcrops, as its eastern North American spleenwort relatives do. Its parentage and exact substrate were not verified here.

No elevation data. Southern Ohio hill country lies at about 200–350 m.

United States

🔒 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.