Range of distribution of Tall Couch, Tall Wild Rye (Elymus excelsus) .

Object description Download GIS-layers


The expert-botanist and the GIS expert - L.L.Malyshev.

Date of creation:



1:20 000 000.

Accuracy of the map:

The map is based on data of 1:12 000 000-1:40 000 000 scale maps.


"Albers Equal-Area Conic Projection for USSR", 9, 1001, 7, 100, 0, 44, 68, 0, 0

Basic contents:

The map is a vector file consisting of 1 basic and 3 subject layers. The species range is represented by a polygon and dots.

Accuracy of the qualifier:

The dots represent information on the species localities according to herbarium materials of LE (1) and published sources (2), the polygon - generalized information on the species distribution.

Method of the map contruction:

The range map is based on published maps (Kharkevich, 1985; Malyshev, Peshkova, 1990). Two areas can be distinguished within the species range: the mountains of southern Siberia (Atlai, Sayans, Cisbaikal area) and Sikhote-Alin Range. N.N.Tzvelev suggests another treatment of the species volume and its relation to Elymus dahuricus. According to his view, E.excelsus is a subspecies of E.dahuricus, and its range is restricted by the southern Dauria and Primorie.


Kharkevich SS., ed. 1985. Vascular plants of the Soviet Far East. V.1. Leningrad: Nauka. 398 p. (In Russian).
Malyshev LI., Peshkova GA., ed. 1990. Flora of Siberia. V.4. Poaceae (Gramineae). Novosibirsk: Nauka. 361 p. (In Russian).

Rights and copyrights:

The copyrights of the map and descriptions are held by their author.
The copyright of the photo is held by N.Yu.Malysheva, L.L.Malyshev.

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