The most peculiar is its insect catching organ, the insect catching cage. When the pitcher plant grows new leaves, there will be a prototype of a cage at the bottom of the cage vine. At first, it is yellowish brown, gradually turns red, and begins to expand, forming a cage. There are lips at the mouth of the cage, which gradually develop wider and larger and turn outward. At this time, the insect catching cage is mature and ready to catch insects.
Cage body can be green, orange, red and other colors, with white spots. When a bug falls into the bottle, the bottle will be dark from the outside, but the white spot will be obviously bright.
The cage is covered above the cage mouth, and the cover can obviously prevent rainwater from entering the cage, and avoid polluting the acid liquid in the cage. It can also block the light and prevent the insects in the cage from escaping.
The opening of the insect catching cage is divided into parallel cage opening and inclined cage opening.
The most colorful part is the outside part of the cage. Lips can secrete juice, which is quite slippery. Insects can slide into the bottle directly when they touch it.
The front part of the cage has two parallel wings, which extend to the bottom of the cage. There are many small structures on the cage wing called wing whiskers. The function of cage wing is to facilitate the insects on the ground to climb to the cage mouth and lay a channel for them to enter the "wolf mouth".
There are other small structures in the cage, such as: digestive gland and waxy area, nectary, nectary, appendage, cage bone, cage tail, cage shoulder.
Different from other plants, the leaf of pitcher plant is actually its petiole, which is a kind of abnormal leaf. The leaves are lanceolate and have obvious pinnate veins.
In addition, it is connected with the leaves of grass: petiole, cage vine, nectary leading the way, and tree.
root is fibrous root, black, fragile and easy to break, not very developed.
pitcher plant is a dioecious plant, two plants of different genders can directly pollinate and seed. Generally speaking, the flowering of pitcher plant is at the junction of drought and rain. When the seeds mature, it happens to be in the rainy season, which is conducive to seed germination.
