Hapaline appendiculata

Natural range and habitat of Hapaline appendiculata

Hapaline appendiculata is endemic to Sarawak on Borneo. It grows in moist lowland evergreen forest in sheltered valleys.

The plant roots in deep humus and leaf litter over shale or basalt. Surrounding vegetation filters strong direct light, and the tropical forest remains warm and humid through the plant's growing period.

How to care for Hapaline appendiculata

• Light: Give it medium to bright indirect light. Keep the thin leaves away from strong direct sun.
• Temperature and humidity: Keep temperatures around 19–27 °C and avoid prolonged temperatures below 18 °C. Keep humidity in the 60–80% range and allow light air movement around the leaves.
• Water while leaves are present: Keep the mix lightly and evenly moist. Let the surface lose some moisture before watering again and allow excess water to drain freely.
• Potting mix: Use a humus-rich aroid mix with fine bark, perlite or pumice. It should stay lightly moist while still draining freely around the tuber and roots.
• Feeding: Use a weak fertiliser while leaves are growing.
• Dormancy: When the leaves yellow and disappear while the tuber stays firm, pause feeding and reduce watering sharply. Keep the mix barely moist until a fresh shoot appears.
• Repotting: Repot when daughter tubers crowd the container or the mix has broken down.
• Propagation: Separate well-developed daughter tubers with their growing point intact.

Problems with Hapaline appendiculata

• The tuber becomes soft, translucent or sour-smelling: Rot has developed around the tuber. Cut away all soft tissue to a firm clean margin with a sterile tool, discard the rotten tissue, let the wound dry, and place the healthy part in fresh airy mix.
• Leaf edges turn crisp while the plant is growing: The mix has become too dry or humidity has dropped sharply. If the mix is dry, water thoroughly. If it is already moist, raise humidity around the plant.
• Leaves yellow while the plant is actively growing and the mix stays wet: The mix is staying too wet. Reduce watering, improve drainage and inspect the tuber for soft tissue.

Hapaline appendiculata is toxic to people and pets

• Keep this plant away from children, cats and dogs.
• Its leaves and stems contain insoluble calcium oxalate crystals, which can irritate the mouth, throat, skin and eyes.
• Chewing may cause burning pain, drooling, swelling, vomiting or difficulty swallowing. Contact a veterinarian or medical professional after exposure, especially if swelling or breathing problems occur.

About the name Hapaline appendiculata

Hapaline carries the Greek sense of “delicate” or “tender”. Appendiculata means “bearing small appendages” and refers to details of the flower.

Heinrich Wilhelm Schott established the genus Hapaline in 1858 in Genera Aroidearum, page 44.

Henry Nicholas Ridley first described Hapaline appendiculata in 1908 in Journal of the Straits Branch of the Royal Asiatic Society, volume 49, page 47.