Phnom Penh tiger tail orchid (scientific name: Sansevieria trifasciata Prain var. laurentii (de wildem.) N. E. Brown) is a variety of Cymbidium in Liliaceae. Perennial herbs have transverse rhizomes. The leaves are basal, erect, hard leathery, flat, long strip-shaped lanceolate, with transverse stripes alternating with white, green and green, the edge is green, the scape is up to 80 cm high, and there is a light brown membranous sheath at the base; Flowers pale green or self colored, clustered, racemes; The pedicel joint is located in the middle; Perianth tube and lobes are about equal in length. It blooms from November to December. Phnom Penh tiger tailed orchid absorbs carbon dioxide and releases oxygen at the same time, which increases the concentration of negative ions in the indoor air. It is a foliage plant to purify the indoor environment.