Begonia subnummularifolia

Begonia subnummularifolia Merr., described in 1926, is a Bornean begonia whose name compares its leaves to the small, round-leaved B. nummularifolia. Its single GBIF record is in eastern Sabah; care follows Bornean wet-forest begonias: shade, warmth and near-constant humidity.

At home, aim for

Day Warm-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Very humid airBand in Plantistry

Light ShadeDLI and PPFD in Plantistry

No rest periodGrows in the ground

Where it grows wild

Not documented in the sources reached. The name suggests a small, round-leaved, probably creeping plant; relatives grow on shaded, wet banks and rocks in rainforest.

No elevation recorded; the record plots at sea level near Tawau–Semporna, which is probably imprecise.

Borneo

🔒 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.