Phalaenopsis inscriptiosinensis

A small epiphytic moth orchid endemic to central Sumatra, with three to five elliptic leaves 8–16 cm long and waxy, 3.5 cm white to pale yellow flowers crossed by brown bars said to resemble Chinese writing. It belongs with the Zebrinae group (the P. sumatrana and P. corningiana alliance), which are warm-growing plants of humid lowland and hill forest. Little is published about its wild habitat, so its care follows that of its close relatives.

At home, aim for

Day Warm-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Ordinary room humidityBand in Plantistry

Light Dappled lightDLI and PPFD in Plantistry

No rest periodGrows on trees (epiphyte)

Where it grows wild

An epiphyte on trees in tropical forest in central Sumatra. The sources consulted give no detail on its host trees or microhabitat; its relatives grow on trunks and lower branches in shaded, humid forest, often near streams.

No elevation is given in the sources consulted and GBIF has no usable wild records. Related Zebrinae species grow mainly in lowland and hill forest below about 1,000 m, which is the likeliest range.

Indonesia: central Sumatra

🔒 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 2.0 licence, unmodified.