Identification of plants distribution honey plants in an area are very important and necessary for the Apiculture and Nectar production plays an important role in the pollination of flowering plants. The aim of this research was determine flowering duration and delay for seven plants of Brassicaceae family Shanjan Rangeland [Aethionema arabicum, Alyssum bracteatum, Alyssum linifolium , Alyssum longistylum, Alyssum marginatum , Conringia perfoliata, Erysimum crassipes]. This research was conducted in Shanjan Rangeland with elevation between 1600 m to 2050 m with SW aspect in Shabestar district, East Azerbaijan, Iran in spring and summer 2011. For sampling, we used an accidental sampling methodology (1*1 m quadrate) in this research and selected 10 samples in each 8 stations separately. Difference elevation was 55 m between each station. There are about 9 days delay for each 110 m elevation deference for flowering start of Aethionema arabicum, Alyssum bracteatum, Alyssum linifolium , Alyssum longistylum, Alyssum marginatum , Conringia perfoliata, Erysimum crassipes, respectively.
