Sarcochilus japonicus is an evergreen perennial orchid occurring on trunks, boughs, or even twigs, emerging with many roots at the plant base, sustaining the body hanging down. The lanceolate, 2cm-long leaves are distichous, arranged in two vertical rows. From the axil, a slender stalk with yellow flowers emerges. The sepals measure 7mm long, the side petals are shorter, and the lip is sack-shaped with purple-brown spots inside. Bloom time: April-May.