Nepenthes sanguinea Lindl., Gard. Chron. 1849: 580 1849.;
Native to Peninsular Malaysia and southernmost Thailand, where it grows at 300–1800 metres (1000 to 6000 feet) altitude as per Wikipedia;
Nepenthes sanguinea Lindl.
Pic taken at WOC Orchid Show, Singapore.
WIKI: Nepenthes sanguinea is a large and vigorous Nepenthes pitcher plant species, native to the Malay Peninsula, where it grows at 900–1800 m altitude.
The pitchers are variable in size, from 10–30 cm tall, and range from green and yellow to orange and red. The insides of the pitchers are usually speckled with its two main colors.
It was introduced to Victorian Britain around 1847 by Cornish plant hunter and botanist Thomas Lobb via the Veitch Nurseries.