Identification of raw herbs
Character identification
It is 14-30cm in length and is white with short hair. Stem multi-branched, tetragonal-cylindrical, nearly base rounded, 0.5-5 mm in diam.; surface yellowish brown, often reddish brown near base, segment evident, internodes 2-5 cm long; crispy, easy to break, pale yellow in section, Leaves opposite, more than shedding, shrinking or broken, the entire person was flattened and long lanceolate after flattening, 0.7-2.5cm long, 4mm wide, sparsely serrated at the edges, yellow-green or dark green; crisp, fragile . Flower wheel densely integrated headlike; sepals white pilose; calyx campanulate, apex 5-lobed; corolla shrinks or falls off. Small is the fruit 4, packaged in the places inside, aroma, cool and cool. The cultivation products are 35-60cm in length and sparsely covered with long hairs; the stems are thick and the length of the internodes is 4-7cm. It is better to have tender branches, many spikes and strong aroma.
Microscopic identification
Powder characteristics: light brown green.
1 Non-glandular hairs 1-6 cells, straight, curved or hooked into the top, diameter 11-34μm, length of about 512μm, and some base cells expanded to 70μm, slightly thicker walls, surface fine verrucous protrusions.
2 The adenosquamous head 8 cells, diameter 59-86μm, stalk single cells, very short.
3 Small glandular hairs with round or oblong heads, 1-2(-4) cells, diameter 16-33 μm; stipitar 1-2 cells, very short.
4 Peripheral wall of the leaf epidermal cells is slightly curved, with a bead-like thickening, with fine stripes on the expression surface;
5 mesophyll cells containing fine oxalate crystals, diameter 1.5-6μm. In addition, there are sepal epidermal cells, pollen grains, stem epidermis, plexiform fibers, and catheters.
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