Pps. labukensis is an epiphytic plant that has very short stems with 3-5 pendent terete leaves.
The leaves are 165-210 cm long and 6-9 mm in diameter. In cultivation, the leaves have been recorded as exceeding 2 m in length and have even been up to 3.5 m long! A short pendulous to slightly upright inflorescence is produced from nodes near the base of the stem.