Polyscias havilandii

• Main Authors: Tsen, S., Tanggaraju, S., Khoo, E., Colin Ruzelion Maycock, Nilus, R., Sugau, J., Pereira, J.T.
• Format: Article
• Language: English; English
• Published: International Union for Conservation of Nature and Natural Resources 2020
• Subjects: QK Botany; SB Plant culture
• Online Access: https://eprints.ums.edu.my/id/eprint/27321/1/Polyscias%20havilandii-Abstract.pdf; https://eprints.ums.edu.my/id/eprint/27321/2/Polyscias%20havilandii.pdf; https://eprints.ums.edu.my/id/eprint/27321/; https://www.iucnredlist.org/species/162008780/162033382
• Institution: Universiti Malaysia Sabah

Polyscias havilandii is a tree known from Mount Kinabalu and vicinity. The estimated extent of occurrence (EOO) and area of occupancy (AOO) are both 8 km2. Due to land use changes, a decline of at least 60% is inferred due to reductions in EOO and AOO over the past three generations (90 years). The remaining known individuals are within protected area (Kinabalu Park). Thus, it is assessed as Endangered. Polyscias havilandii is endemic to Sabah, Malaysia. This species is restricted to Kinabalu Park (Totally Protected Area).