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Pistia is a genus of aquatic plants in the arum family, Araceae.It is the sole genus in the tribe Pistieae which reflects its systematic isolation within the family. [5] The single species it comprises, Pistia stratiotes, is often called water cabbage, water lettuce, Nile cabbage, or shellflower.
Stems support the entire plant and have buds, leaves, flowers, and fruits. Stems are also a vital connection between leaves and roots. They conduct water and mineral nutrients through xylem tissue from roots upward, and organic compounds and some mineral nutrients through phloem tissue in any direction within the plant.
Some still-water plants can alter their position in the water column at different seasons. One notable example is Water soldier which rests as a rootless rosette on the bottom of the water body but slowly floats to the surface in late Spring so that its inflorescence can emerge into the air.
Limnobium laevigatum is a floating aquatic plant, which can be mistaken for water hyacinth (Eichornia crassipes) due to their superficial similarity.Juvenile plants grow in rosettes of floating leaves that lie prostrate upon the water surface, a distinguishing character of the juvenile plant is the presence of spongy aerenchyma tissue upon the abaxial surface (underside) of the leaf.
The new tips of watercress leaves can be eaten raw or cooked, [22] although caution should be used when collecting these in the wild because of parasites such as giardia. [23] Watercress is 95% water and has low contents of carbohydrates , protein , fat , and dietary fiber .
The seeds are burs, and are very sticky. The plant is native but a well-known nuisance in deciduous forests of the eastern U.S. because the seeds can be difficult to remove from clothing and especially pet fur. [8] [9] The seeding part of the plant—the upper stem—dies earlier than most other plants, and becomes very brittle. Often the ...
Like other seeds, from hemp and sesame to flax and chia, poppy seeds are nutritionally beneficial, packed with fiber, plant fats, protein, and micronutrients, including copper, manganese, iron ...
Wolffia is a genus of aquatic plants with a cosmopolitan distribution. [1] They include the smallest flowering plants on Earth. [2] Commonly called watermeal or rootless duckweed, [3] [4] these aquatic plants resemble specks of cornmeal floating on the water.