Can Cao Jie soak in water for a long time?

Holiday grass can be soaked in water for a long time.

Lycopodium japonicum is a sweet and slightly bitter Chinese herbal medicine. Its main functions are clearing away heat and diuresis, improving eyesight and relieving cough. Clinically, it is mostly used to treat diseases such as red eyes, swelling and pain, hepatitis, tracheitis and urinary system infection, and the curative effect is particularly obvious.

Master Li Ming really said, "This grass has bumps and a rough surface. Those who cure wooden bones are polished with them, as clean as thieves. " In ancient times, pests who ate Miao Festival were called thieves. "Eating roots means eating net worms, and eating festivals means stealing".

This is also a comment on the origin of equisetum in Compendium of Materia Medica. And Tang Chen Zang Fei said, "Wen Jing was born in Zhu Jian, Yizhou, and his seedlings are like wooden thieves, one after another, and one follows the grass." The old carpenter called the wooden thief "filing grass"

Extended data:

The powder of profile grass is gray-green. Microscopically, many stem epidermis fragments can be seen, which are nearly colorless or yellowish. On the surface, epidermal cells are rectangular or long, with thick vertical walls and deep waves. There are yellow-brown pigment particles in the cell cavity, and there are often cracks on the surface.

The longitudinal section is flat and rectangular with thick wall and obvious holes and grooves. The outer wall of the cell at the crest protrudes outward with a siliceous tumor-like process. The pores are deep, longitudinally arranged, quasi-circular or rectangular, with a diameter of 75 ~ 85 microns and a length of 75 ~ 108 microns. There are many lateral parallel thickening stripes on the inner wall of guard cells.

Leaf sheath epidermis fragments are yellow-brown or brown, cells are rectangular or rhombic, the vertical wall of ridge cells is slightly thick, deeply wavy and curved, and the vertical wall of groove cells is straight; The pores are round and small.

The fibers are mostly in bundles, often connected with epidermis, with inclined or truncated end walls, obvious holes and grooves, small and sparse pits, herringbone or oblique seams. The tracheid is slender, with large pits and oval shape. Endocortical cells are rectangular, slightly thick, slightly wavy and shiny.

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