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Range DescriptionRecorded from Indonesia: Kalimantan (Borneo, incl. Karimata Island); and Malaysia: Sarawak, Sabah. Based on a limited number of herbarium specimens the extent of occurrence is estimated to be about 50,000 km2. There is insufficient data to estimate the area of occupancy. The range is extensive and covers much of northwest and north Borneo at higher elevations.