摘要：Composition of the flora that is accompanying to the Acer campestre in the north-eastern border of the range has been investigated. Its analysis has been carried out according to relation of plant species to the some environmental factors. Ecological groups have been specified in relation to the lighting / shading, in relation to water. Ecological-coenotical analysis has been carried out. Species of accompanying flora have been assigned to the life-form groups according to the Raunkiaer's life-form classification. It has been shown that Acer campestre represented by undersized individuals on the north-eastern border of the range. Shade-tolerant species of vascular plants are dominated within accompanying flora.
关键词：Acer campestre; Red Data Book; accompanying flora; range; Republic of Mordovia
