Abstract
A taxonomic study on the weeds of the family Poaceae growing throughout the Bangladesh Agricultural University campus was carried out to determine species diversity of grasses in the campus. A total of 81 species under 46 genera and 2 subfamilies of the family Poaceae were collected and identified; their uses in various ailments were also recorded. Out of the three subfamilies, no weed from the subfamily Bambusoideae was found. Among the genera, Digitaria, Eragrostis, Brachiaria, Panicum, Echinochloa and Sporobolus were most dominant in context to number of species with a total of 29 species. While 28 genera were represented by single species each in BAU campus; of these 15 genera were in Bangladesh as well. Some of them are major and obnoxious weeds in different crop fields including staples rice and wheat. The flowering period will be helpful for the management of respective weed population. Many of these weed species have high economical, ethnomedicinal and other uses. The phenological study of these weed taxa will be helpful in managing weeds of the family Poaceae of this campus as well as the whole country without affecting the agro-ecosystem by keeping the weed population below a threshold level.
 J.Bangladesh Agril. Univ. 16(3): 372–379, December 2018
Highlights
A taxonomic study on the weeds of the family Poaceae growing throughout the Bangladesh Agricultural University campus was carried out to determine species diversity of grasses in the campus
Poaceae grasses in Bangladesh Agricultural University (BAU) and their uses the plenty of grasses in BAU campus, no momentous taxonomic study on grasses of this region has been made in the current years but only weeds of different specific crops were studied (Shabi et al, 2018)
The current survey aimed at making an intensive taxonomic study of the weeds of Poaceae family in the BAU campus including their habitat, flowering period, ethnobotanical uses and economic importance; which may be useful for the green management practices and for getting higher economic benefits
Summary
A taxonomic study on the weeds of the family Poaceae growing throughout the Bangladesh Agricultural University campus was carried out to determine species diversity of grasses in the campus. The family Poaceae (conserved name Gramineae), universally known as grass family, is the fifth largest plant family, following the Asteraceae, Orchidaceae, Fabaceae and Rubiaceae It is the second most diverse family among monocotyledons (Bouchenak-khelladi et al, 2010), with 780 genera and around 12,000 species of cosmopolitan distribution (Christenhusz and Byng, 2016). The current survey aimed at making an intensive taxonomic study of the weeds of Poaceae family in the BAU campus including their habitat, flowering period, ethnobotanical uses and economic importance; which may be useful for the green management practices and for getting higher economic benefits
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