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Species library › Pyrrosia › Pyrrosia rasamalae
Ferns Partly documented

Pyrrosia rasamalae

A small, creeping felt fern that grows as an epiphyte on trunks and branches in submontane and montane forest from Thailand and the Philippines to Java. It wants bright filtered light, mild steady temperatures and humid moving air, but its thick hairy fronds tolerate brief drying better than most ferns.

At home, aim for
Day IntermediateTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Ordinary room humidityBand in Plantistry
Light Bright, filtered lightDLI and PPFD in Plantistry
No rest periodGrows on trees (epiphyte)

Where it grows wild

Epiphytic on tree trunks and branches in humid hill and montane forest; the name refers to the rasamala tree of Java, an early host. Like other Pyrrosia it uses a thick, star-hair-covered frond to ride out short dry spells.

Recorded at 458-1,860 m, median about 1,070 m.

PhilippinesMalaysiaIndonesia (Sumatra, Java, Borneo, Lesser Sunda Is.)ThailandMyanmarLaosAssam and East Himalaya

🔒 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.