Numerical Taxonomy for Genus Crataegus L. (Rosaceae) in North of Iraq

The present research included numerical taxonomy for the genus Crataegus L. which is growing in Iraq and represented by the following five taxa namely: (Crataeques azarolus var. aronia, C.azarolus var. pontica, C. azarolus var. sharania , C. monogyna and C. meyeri) by using morphological, pollen grains and Chromosomal number features. The results showed that the similarity range among the species was 30-68% and the highest Similarity was 68% found between the C. azarolus var. aronia and C. azarolus var. sharania. In dendrogram the taxa meet at (51%) level of similarity, indicating awide range of Variation among the taxa of this genus.