Aconitum napellus (leaf)
From AHPA Botanical Identity References Compendium
The leaves of Aconitum napellus L., Ranunculaceae.
General Characteristics Epidermal cells (upper and lower) tabular with wavy vertical walls; stomata on lower surface only; upper cells larger and vertical walls less wavy; trichromes simple, single celled with warty markings. Few comparatively thin walled, nearly colorless, very porous, stone cells. Pollen grains oval.
Color Rather dull green.
Scent Nearly odorless, faintly fragrant.
Flavor Bitter, pungent, producing a benumbing effect.
Ash Content Ash should not exceed 17 percent.
Source: Schneider, A. (1921) The Microanalysis of Powdered Vegetable Drugs, 2nd ed. [1]
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