Huang-teng (Calamus Formosanus) is a perennial palm in the Arecaceae family with moderate care difficulty. It requires high watering and partial shade or filtered_light light in USDA hardiness zones 10-11. This plant is safe for cats and dogs.

Calamus formosanus is a species of climbing palm native to Taiwan, characterized by clustered stems up to 20 m long, yellowish-brown spiny leaf sheaths, and broadly lanceolate pinnae irregularly arranged on the rachis.