measurement
A 2005 study by Qiu and Zeng analyzed the concentrations of nitrate, nitrite, and vitamin C in eight wild vegetable species from the Asteraceae family: Crassocephalum crepidioides (Benth.) S. Moore, Emilia sonchifolia (L.) DC., Sonchus wightianus DC., Lactuca sibirica (L.) Benth. ex Maxim., Elephantopus scaber L., Erigeron canadensis L., Artemisia argyi H. Lév. & Vaniot, and A. lactiflora Wall. ex DC.

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Referenced by nodes (3)