Carnivorous Plant Glossary

A leaf that has evolved a specialized form for capturing insects. Trap mechanisms vary greatly by species, including sticky surfaces, snap traps, and pitfall traps.

A sticky fluid secreted from glandular hairs on the leaves of sundews and butterworts. It glistens in the light to attract insects, then traps them on contact.

A trapping mechanism using tubular or pitcher-shaped leaves that lure insects inside. Sarracenia and Nepenthes are typical examples, with slippery inner walls that make escape nearly impossible.

A trapping mechanism where clamshell-like leaves snap shut to capture prey. The Venus flytrap (Dionaea) is the best-known example — its leaves close in about 0.5 seconds after trigger hairs are touched twice.

A carnivorous plant native to North America, scientifically known as Dionaea muscipula. It captures insects with its clamshell-shaped trap leaves and is the most well-known entry-level carnivorous plant.

A genus of tropical pitcher plants mainly found in Southeast Asia. They capture insects using pitcher-shaped traps. They prefer warm, humid conditions, and highland vs. lowland species have different cultivation requirements.

A carnivorous plant native to North America with upright tubular pitchers. Many species are cold-hardy and can overwinter outdoors in Japan. They are easy to grow, making them suitable for beginners.

A carnivorous plant that captures insects with sticky glandular hairs (tentacles). About 200 species exist worldwide, including native Japanese species. Leaf shapes vary from round to elongated forms.

A sac-shaped or tubular trapping organ found in Nepenthes and Sarracenia. It contains digestive fluid that breaks down captured insects for nutrient absorption. New pitcher formation is an indicator of plant health.

A watering method where the pot sits in a tray of water, allowing constant absorption from the bottom. Since most carnivorous plants originate from wetlands, tray watering is the standard way to maintain constant moisture.

Sphagnum moss and peat moss are the primary growing media for carnivorous plants. A clean, nutrient-free substrate is essential — standard potting soil contains fertilizers that can damage the roots.

A state where the above-ground parts die back and growth stops during winter. Venus flytraps and Sarracenia benefit from outdoor dormancy for better spring growth. The growing medium should be kept moist even during dormancy.