A total 26 Asteraceae weed species under 21 genera and were found in BAU campus. The number of Asteraceae weed taxa reported in recent studies (this article; Rahman, 2013) is larger compared to Karim and Kabir (1995); it might due to introduction or invasion of new taxon as a weed. Anthropogenic activities may act as a vector to introduce new weeds from other location (country) with various crop seeds. For example, the Parthenium (P. hysterophorus L.) weed was introduced from the USA via India or Australia through wheat import (https://www.apwss.org/documents/ newsletters/parthenium/Parthenium_News_Jan_2010.pd f). The misidentification of taxon (pl. taxa) might be another possibility of lower weed number reported in the previous study (Karim and Kabir, 1995). Among these 21 genera, the most dominant genera were Blumea with 4 species followed by Gnaphalium having 3 species; and these two genera together account for 26.9% of total weed species of this family in the BAU campus. Nineteen genera were represented by single species each at BAU campus, of which 14 genera viz. Ageratum, Chromolaena, Cotula, Crassocephalum,Eclipta, Enhydra, Grangea, Hemistepta, Ixeris, Mikania, Syndrella, Tridax, Xanthium and Youngia, were represented by single species only in Bangladesh as well (Ahmed et al., 2008). Among the reported weed species, population density of Ageratum conyzoides, Blumea lacera, Mikania cordata, Spilanthes calva, Vernonia cinerea, Xanthium indicum and Youngia japonica was higher at BAU campus. Some of these weed species are common and major weeds in the wheat, boro rice and other crop fields (Huda et al., 2017; Salam and Begum, 2017). Weed species found in the study area occupy diverse habitat including roadsides, fallow lands, various crop fields, open fields, levees of crop field, nursery beds, bushy areas, dry lands, shallow water bodies, etc. Most of the weeds are very common in roadsides, crop fields, levees of the crop field, fallow lands especially the species of the genus Ageratum, Vernonia, Blumea, Gnaphalium, Eclipta, Mikania, Youngia, Xanthium, etc. Only three aquatic species viz. Enhydra fluctuans, Eclipta alba and Spilanthes calva, were found in this habitat, drying-up of the area could be used as a means of physical control of these weeds. Rest of the twenty three species were reported to occur in more or less dry habitat that can be submerged by irrigation as a method of physical control.