Utricularia
1. Utricularia japonica
Utricularia japonica
Utricularia japonica , carnivorous aquatic plants, generally live in the still water of pools. Because they have no roots, they wander with the water. This kind of aquatic plants are generally 1 meter long. Except for the catkins, they are heavier than the water. There are ovoid insect cysts on the leaves. Can catch weak insects or zooplankton in the water. In summer and autumn, the flowers stick out of the water and form yellow lip-shaped flowers. When insects or larvae encounter its hairs, they will be sucked into the sacs with the water and eventually be digested and absorbed by the digestive liquid. In addition to having a habit of living in heavy water, Utricularia japonica is also a carnivorous plant with insect cysts that grow laterally on the leaf organ lobes. The insect cysts are oblique and ovoid in shape and can capture weak animals in the water. It likes a sunny environment, but be careful not to make the sun too strong. It likes warmth and is afraid of low temperatures. It grows well in the temperature range of 20 to 30 degrees, and the overwintering temperature is not lower than 10 degrees Celsius. In this way, aquatic carnivorous plants bloom and end in common with other angiosperms. Racemes, blooming with yellow flowers; forming capsules.
2. Utricularia universal
Utricularia is a perennial herbaceous plant (a small amount is annual), which can grow In ponds, ditches, wetlands, trees in tropical rainforests, etc. Utricularia has a thick main stem axis, which can be up to one meter long. There are no roots, leaf whorls or single leaves are born on the main branches. In aquatic species, the leaves are filamentous and often branched. The insect cysts are born on the crawling branches or at the base of the leaves, and small organisms such as larvae and water fleas can be sucked into the cysts. , and digestion and absorption. It can adapt to various water qualities and can generally survive at 10 to 32 degrees. Different varieties can withstand a low temperature of 0 degrees or a high temperature of 37 degrees. When cultured in an aquatic tank, the insect cysts may disappear. It prefers weakly acidic soft water and will not grow well in harder water.
3. Utricularia heteroclada
Utricularia heterophylla is a perennial herb widely distributed in the northern hemisphere. It mostly grows in shallow swamps and pools. Unlike common bladderwort, it has white underground stems. The main stem is about 20 cm long and has almost no branches. The leaves are small split leaves that grow alternately on the main branches and open in a fan shape. The insect cysts are born on the main branches or are formed by orthogonal intersecting underground stems. Small organisms such as larvae and water fleas can be sucked into the cysts and digested and absorbed. When the general environment is relatively harsh, insect cysts are more common, but they are rarely seen under conditions of strong light and high nutrition. It can withstand low temperatures of nearly 0℃ but is not resistant to high temperatures. The terminal buds can produce green spherical buds in winter, and new individuals can be produced at the bottom of the water after falling off in spring. It likes weakly acidic soft water and must add carbon dioxide to grow it.
4. Eargrass
Eargrass
Eargrass is a landscape grass that grows very densely. The roots and leaves of the grass can rotate with each other and grow by underground stems. Eargrass is a carnivorous plant that grows in swamps and wetlands. Its sac-shaped insect catching organs are attached to leaves and stems. They are only about 1 mm in size and are difficult to see with the naked eye. There are some hairs around the entrance of the insect trap.Whenever a strong aquatic creature swims by and shakes these hairs, the insect sac's passage will be opened quickly, sucking all the water and small organisms into the sac for digestion and absorption. There are many varieties of eargrass, and their shapes are not the same. It is suitable to be cultivated with aquatic grass mud, which requires a huge amount of fat, and the root fat must be compensated in time. It requires strong light, soft water and sufficient carbon dioxide to grow quickly.
5. Red raccoon algae
Red raccoon algae
Red raccoon algae is a rare aquatic carnivorous plant native to Australia. It can grow in heavy water or wander. It is easy to turn red under strong light, prefers higher water temperatures, and will hibernate at low temperatures. Its leaves are in the shape of a clip, similar to the insect-catching device of the fly plant, so it is also known as the "fly plant in the water". There are often 6-8 whorled leaves, with stalks and leaf whiskers, yellow-green. When a water flea or other aquatic insect comes into contact with its leaf surface, the entire leaf will immediately merge with its two wings, trapping the water flea in the leaf. When the water flea dies, it immediately penetrates digestive enzymes to analyze the body, and Receive nutrients to sustain life. However, it can also perform photosynthesis and grow by absorbing organic nutrients in the water, so it can also be planted in aquariums for viewing, but cultivation is very difficult. Weakly acidic soft water must be used for planting, and sufficient light and carbon dioxide are indispensable. If the color is weak, the red will not be obvious, and the whole body will be yellow-green or only the top will be reddish.
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