[Identification of Kochia scoparia and its substitutes by scanning electron microscope and UV spectrum]

Scanning electron microscope (SEM) and UV spectrum methods were used to identify Kochia scoparia and its substitutes, including the fruits of Chenopodium album, Chenopodium serotinum and Kochia scoparia (L.) Schrad. f. trichophila Schirz. et Thell. The results showed that kochia scoparia differed from the substitutes in utride, trichome, stoma and shape of seed under SEM. The UV spectrum of Kochia scoparia was similar to that of Kochia scoparia f. trichophila, but significantly different from that of Chenopodium album and Chenopodium serotinum.