Area of distribution and weediness of Amaranthus retroflexus L.

Object description Download GIS-layers


Object specialist - T. D. Sokolova, GIS-specialist-I.A.Budrevskaja.

Date of creation:



1:20 000 000.

Accuracy of the map:

Created using maps of natural scale 1:80 000 000 and larger.


"Alber's Equal Area Conic" USSR, 9, 1001, 7, 100, 0, 44, 68, 0, 0.

Basic contents:

Vector map. Area is shown by polygons (basic distribution) and by points (sporadic distribution). Zone of harmfulness is shown by polygons.

Accuracy of the classifier:

Areas of basic distribution, sporadic distribution and harmfulness were established according to the analysis of the open-published maps and literature. The area of Amaranthus retroflexus is based on the map from Volkov A.N. (1935). The area of distribution on the Caucasus, in Krasnodar and Stavropol regions is established according to the following sources: (Grossheim, 1962); (Galushko, 1978); (Niconov, 1975). Limits of the zone of harmfulness are established according to the following sources: (Nikitin, 1983); (Barbarich et al., 1970); (Ten, 1988) and adjusted with the limits of the arable lands map. Sporadic distribution is shown according to: (Hulten & Fries, 1986); (Vasilchenko, 1953).

Method of map production:

Published literature was reviewed, including Atlases, monographs and papers. Occurrence data were obtained from herbarium specimens, floras, monographs and papers. Data were then compiled through scanning and geo-referencing to develop a composite vector map. The biologist, together with the GIS specialist, drew a composite weed distribution area based on compiled data.

Reference citations:

Barbarich A.I., Visyulina O.D., Vorob'ev M.E. 1970. Weeds of the Ukraine. Kiev: Naukova dumka. 111-112 pp. (In Russian)
Galushko, A.I. 1978. Flora of Northern Caucasus. Rostov-on-the Don: Rostov University. V. 1: 232. (In Russian)
Grossheim, A.A. 1945. Flora of the Caucasus. Baky: Ac. Sc. Az. SSR. V. 3: 172. (In Russian)
Hulten E., Fries M. 1986. Atlas of North European Vascular Plants, North of the Tropic of Cancer: Konigstein. V. 1-3: 1172.
Karyagin, I.I. 1952. Flora of Azerbaijan. Baku: Ac.Sc. Az. SSR. V. 3: 263. (In Russian)
Koroljeva, I.E., Vilchevskaya, E.V, Ruhovich, D.I. 2003. Digital Arable Land Map. Laboratory of Soil Information of the Dokuchaev Soil Institute, Moscow.
Krasnoborov, I.M. & L.I. Malyshev. 1992. Flora of Siberia. Novisibirsk: Nauka. V. 5: 185. (In Russian)
Minyaev N.A., Orlova N.I., Shmidt V.M. 1981. Identification book on higher plants of Northwest of the European part of the USSR. Leningrad: Leningrad University. 155 pp. (In Russian)
Niconov A.A. 1975. Weed plants of the Stavropol region. Proceedings of Stavropol research institute of agriculture. Issue XXXII. Stavropol. 102 pp. (In Russian)
Nikitin V.V. 1983. Weed plants of the flora of the USSR. Leningrad: Nauka. 48-54 pp. (In Russian)
Pavlov, N.V. 1960. Flora of Kazakhstan. Alma-Ata: Ac. Sc. Kazakh SSR. V. 3: 323. (In Russian)
Ten A.G. 1988. Control measures of field weed vegetation in Altai region. Recommendations. Novosibirsk. 40 pp. (In Russian)
Tolmachev, A.I. 1976. Flora of Northeast of the European part of the USSR. Leningrad: Nauka. V. 2: 194-195. (In Russian)
Ulyanova T.N. 1983. Weed plants of the Soviet Far East. The catalogue of world collection of VIR. Issue 374. Leningrad. 19 pp. (In Russian)
Ulyanova T.N. 1989. Field weed plants of cotton in the USSR. The catalogue of world collection of VIR. Issue 499. Leningrad. 15 pp. (In Russian)
Vasilchenko, I.T. 1948. Flora of Turkmenia. Ashkhabad: Turkmen branch of Ac. Sc. USSR. V. 3: 9. (In Russian)
Vasilchenko I.T. 1953. Geographical distribution of weed plants. In: Weed plants of Tadjikistan. Moscow-Leningrad: Ac. Sc. USSR. V. 2: 67-290. (In Russian)
Vil'yasoo L., Kalamees K., Kask M. 1971. Flora of Estonian SSR. Tallin: Valgus. V. 8: 129. (In Russian)
Vvedenskiy, A.I. 1953. Flora of Uzbekistan. Tashkent: Ac. Sc. Uz. SSR. V. 2: 337. (In Russian)
Vvedenskiy, A.I. 1955. Flora of Kirghiz SSR. Identification book on plants of Kirghiz SSR. Frunze: Ac. Sc. Kirghiz SSR. V. 5: 84. (In Russian)
Volkov A.N. 1935. Regions of distribution of the most important weed species in the USSR. Moscow-Leningrad: State printing office. 99 pp. (In Russian)

Right and copyright:

All rights reserved.
Copyright 2003 © T. D. Sokolova & I.A.Budrevskaya (vector map, description).


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