Begonia acaulis

A stemless (acaulescent) Begonia from Papua New Guinea (Merrill & Perry, 1943). It grows on wet rock faces by waterfalls and in rainforest along the Laloki River near Port Moresby at about 450 m, with one record from upper mid-montane forest in Morobe. It wants warmth, shade and constantly wet air.

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 on rock (lithophyte)

Where it grows wild

Recorded on a wet rock face beside a waterfall in Varirata National Park and in rainforest on the Laloki River. The rosette habit suits growing on wet rock.

The main records are at about 450 m. One Morobe record is from upper montane forest.

Papua New Guinea

🔒 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.