The current research dealt with a comparative taxonomic study of the two types Chenopodium album L. and Chenopodiastrum murale L. at Baghdad , This research was included a cytological study by calculating the chromosome number by sequence n=27,9. and studying the micro-morphological characteristics of the seeds and fruits of the two types, in addition to the surface covering in the leaf part. All phenotypic characteristics of the seeds were studied by scanning electron microscope (SEM) and Light microscope (LM) in terms of shape, colour, dimensions Seed size were measured by the program digmizer , as well as the configuration  of the seeds surface , The seeds of Ch.album were distinguished by their dark-black color, while the seeds of the other type were greenish-brown, seeds in addition to the fruits, helped to isolate and classify the two types. The surface covering results showed a variation in terms of density and distribution method on the leaf surface , and the presence of glandular-bladder  and a glandular hairs was recorded in Ch.album, while for Ch.murale hairs of the a glandular type were observed. It is worth noting that all the results obtained in this research are presented for the first time in Iraq.

The present study dealt with the morphological, anatomical,trichomespollen grains,and ecological characteristics of Caroxylon jordanicola (EigAkhani & Roalson (Amaranthaceae) in Al-Tar Caves, Karbala, Iraq which belongs to the Amaranthaceae family. The results of the present study demonstrated that There are distinctive characteristics of the studied species distinguish it from other species and facilitate its diagnosis. The sample was diagnosed using the taxonomic keys of the Iraqi flora and the flora of neighboring countriesIn addition to some available research. The results of the morphological and anatomical features investigation provide really significant taxonomical value to distinguish the species. The results that showed that this species is annual to 40 cm, semi- spherical, lower leaves 1-3 cm, caduceus, other leaves to 2.5 mm, with broad, has non-glandular trichomes and glandular trichomes. The species recorded 7 μm the average thickness of the cuticle layer. cortex thickness was also recorded and measured, which was 210 μm. the average thickness of Phloem was 40μm, It has the presence of a bundle cap fibers (Bundle sheath) which consists of sclerenchyma fibers that appear in a ring around the Phloem. The average thicknesof  xylem was 190 μm and  pith thickness was 240 μm.