The genus Chenopodium L. in Egypt. II. Anatomical characters as a systematic tool.
The anatomy of 9 species of Chenopodium (C. ambrosioides, C. rubrum, C. glaucum, C. murale, C. album, C. vulvaria, C. ficifolium, C. opulifolium and C. moquinianum) from Egypt was investigated to aid identification. Both stem and leaf anatomy as well as foliar trichome types were studied in detail. In this respect, the cortex, pericycle, nature of the abnormal secondary thickening in vascular cylinder and interxyllary phloem, also leaf mesophyll, number of vascular bundles at mid-rib region together with foliar trichome types proved to be of considerable diagnostic value in constructing a key.