Nepenthes merrilliana
A lowland Philippine pitcher plant from north-eastern Mindanao, Dinagat and Samar. Its pitchers are among the largest in the genus and rival those of N. rajah. It grows on steep, often exposed slopes, including roadside clay and ultramafic rock, from sea level to about 1100 m. In cultivation it is a warm lowland grower that needs heat, strong light and high humidity all year, with only a small drop at night.
Where it grows wild
A terrestrial pitcher plant of coastal forest on steep slopes. It often grows in open, disturbed and exposed places. Recent herbarium labels from Dinagat record it along a trail in exposed places on ultramafic bedrock at 203 m, and in clay and loam by a road, also exposed, at 67 m. Rosettes produce large ground pitchers, and older stems climb and carry upper pitchers.
The literature gives 0–1100 m. The two Dinagat labels are at 67 m and 203 m. A 1600 m record in the data comes from Luzon, well outside the known range, and is doubtful.
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The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:
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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 3.0 licence, unmodified.