Nepenthes clipeata (/nɪˈpɛnθiːz ˌklɪpiˈɑːtə/; from Latin clipeus "round shield", referring to the leaf shape), or the shield-leaved pitcher-plant,[3] is a tropical pitcher plant known only from the near-vertical granite cliff faces of Mount Kelam in West Kalimantan, Indonesia.
[5] Hallier wrote an account of his discovery, which appeared in B. H. Danser's 1928 monograph, "The Nepenthaceae of the Netherlands Indies", and has been translated as follows: After once again climbing a steep slope with Gleichenia thickets, one stands suddenly beneath the high enclosing rock wall of the mountain ring.
The smooth water-washed stone seamed with water channels shows no variation in structure, and it appears almost as if the whole mountain was composed of a single monstrous block of rock.
Especially the almost orbicular leaves, the thick, short, never curved tendrils, which are inserted far from the apex, the peculiar-shaped pitcher without wings and the strongly vaulted lid are very remarkable.
[9] During the 1980s, plant collectors began to visit Mount Kelam with increased frequency, placing pressure on wild populations of N. clipeata.
[12] A 2016 multi-day expedition to Indonesian Borneo by geographer and writer Stewart McPherson found only seven specimens, four adult and three juvenile.
[13] Despite its rarity, N. clipeata is officially listed on CITES Appendix II and was until recently considered Data Deficient by the IUCN.
[10] There is also an ongoing N. clipeata in situ conservation project started in October 2011 by Irwan Lovadi and supported by The Rufford Small Grants Foundation.