Corydalis melanochlora, De wa དེ་ཝ De wa  དེ་ཝ  (Tibet)An Lu Zi Jin 暗绿紫堇 (TCM) Maximowicz, C.J., Historia naturalis itinerum N. M. Przewalskiiper Asiam Centralem, vol. 1, Flora Tangutica, vol. 1 (1889) Botanical name: Corydalis melanochlora, C. bulbiferaSman rams pa (1998) gives 3 types of De Wa: Sno De Wa: Corydalis melanochlora, C. bulbifera Chu De Wa: Saussurea hieracioides Shing De Wa: Populus alba, P. bonati Parts used: Entire plant Temperature & Taste: Cool, dry. Bitter, Sweet Uses: 1. Clears Wind-Heat-Heat (Bile) disorders of the Channels-Fever from Heat (excess Bile)-Contagious Fever Dose: Powder: 1–3 grams Substitute: 1. Flowers of Gentiana decumbens2. Saussurea hieracioides (Chu De Wa)3. Populus alba, P. bonatii (Shing de wa) is regarded as a type of De wa in Tibetan Medicine. It may be used as a substitute.4. Willow tree (Shing byar pa) is accepted as a substitute for P. alba (Shing de wa), indicating it may be a useful substitute for De wa.5. Primula sibirica (herb) has been given by some sources. Comment: ‘Bulbous Fumitory’ was said to supply the market for Round Birthwort, and was in fact a bulbous Corydalis which may be related to C. bulbifera. Main Combinations: Major Formulas: Cautions: None noted Main Preparations…

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