Achillea millefolium (flower)
Achillea Millefolium (flowering parts)
General Characteristics Epidermal cells (upper and lower) of leaves tabular with wavy vertical walls. Hair cells simple with one to six basal cells and long apical cell; walls moderately thick, smooth. A few bladdery glandular hairs. Stomata on upper and lower epidermis. Two or three rows of palisade cells. Spongy tissue of spheroidal cells. Parenchyma, bast, tracheids, spiral ducts. Fibers with prismatic crystals of calcium oxalate, from stems, petioles, and veins. Pollen grains characteristic of the order..
Color Grayish green.
Scent Aromatically fragrant, resembling chamomille.
Flavor Bitter, astringent, somewhat saline.
Ash Content Ash should not exceed 12 percent.
Source: Schneider, A. (1921) The Microanalysis of Powdered Vegetable Drugs, 2nd ed. [1]
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