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Species library › Oncidium › Oncidium gramineum
Orchids Partly documented

Oncidium gramineum

Formerly Sigmatostalix graminea, a tiny grass-leaved twig epiphyte widespread on the eastern Andean slopes from Colombia to Bolivia. Records span 200–2,450 m, centred around 1,300 m, so it is an intermediate grower that wants constant humidity and quick-drying roots.

Oncidium gramineum
Photo: Heinrich Gustav Reichenbach, Public domain, via Wikimedia Commons
At home, aim for
Day IntermediateTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Humid airBand in Plantistry
Light Dappled lightDLI and PPFD in Plantistry
No rest periodGrows on trees (epiphyte)

Where it grows wild

Small twig epiphyte of humid premontane and lower montane forest.

Recorded at 200–2,450 m, median 1,320 m.

EcuadorPeruColombiaBolivia

🔒 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 Public domain licence, unmodified.