Area of distribution and weediness of Chondrilla juncea L.

Object description Download GIS-layers


Specialist-biologist - O.E. Kravchenko,
GIS-specialist - I.A. Budrevskaya

Date of creation:



1:20 000 000

Accuracy of the map:

Map was created based on materials of maps of natural scale 1:10 000 000 - 1:55 000 000 and on literature data.


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

Basic contents:

Vector map. Area of species distribution is shown by polygons and sporadic distribution by points. Zones of weediness are shown by polygons.

Accuracy of classifier:

The weed area is subdivided into two zones, one representing species distribution, and the second where weed is considered a serious pest. Points represent locations where sporadic occurrence has been reported.

Method of map production:

Published literature was reviewed, including Atlases, monographs and papers. Occurrence data were obtained from herbarium specimens, floras, monographs and papers. The data of Krylov et al. (1949) was used as a prototype for the map. It was supplemented with the data of Vasilchenko & Pidotti (1975), the herbarium of weed plants at VIR and the database authored by Petrosyan et al. (2003). Adjustments were made according to the references listed below. This species grows in Eurasia between 35 and 55 degrees N, from the south of the forest zone up to a semi-desertic zone, mainly on sandy soil. It is known (McVean, 1966) that in Central Asia and Siberia the species grows only in the mountains (from 200 up to 1800 meters above sea level). The zone of weediness is located in the basic area of the species to the European part on arable lands in a zone of steppes and semi-deserts. Here the plant litters grain crops, deposits and pastures with an abundance of more than 2-7 plants per square meter (Wapshere et al., 1974). 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:

Cherepanov S.K. 1995. Plantae Vasculares Rossicae et Civitatum Collimitanearum (in limics USSR olim)[List of Vascular Plants of Russia]. St. Petersburg: Mir I Semia. 990 pp. (In Russian)
Gejdeman T.S. 1954. Keys to plants of Moldavian SSR. Moscow-Leningrad: AN SSSR. 468 pp. (In Russian)
Grossgeim A.A. 1949. Keys to plants of the Caucasus. Moscow: Sowetskaja nauka. 747 pp. (In Russian)
Gubanov I.A., Kiseleva K.V., Novikov V.S., Tihomirov V.N. 1995. Keys to vascular plants of the center of the European Russia. Moscow. 560 pp. (In Russian)
Keller B.A., Ljubimenko V.N., Maltsev A.I., Fedtshenko B.A., Shishkin B.K., Rodzevic R.Yu., Kamenski K.V., eds. 1935. Weed plants of the USSR. V. 4. Moscow-Leningrad: AN USSR. 414 pp. (In Russian)
Kharkevitбh S.S., ed. 1992. Vascular plants of the Soviet Far East. V. 6. Saint-Petersburg: Nauka. 428 pp. (In Russian)
Krasnoborov, I..., ed. 1997. Flora of Siberia. V. 13. Novosibirsk: Nauka. 472 pp. (In Russian)
Krylov, P.N., Shishkin, V.K., Sergievskaya, L.P., Shteinberg, E.I. & I.M. Krasheninnikov. 1949. Flora of Western Siberia. Release 11. Tomsk. 2630-3070 pp. (In Russian)
Maevskii, P.F. 1954. Flora of middle belt of the European part of the USSR. Moscow-Leningrad: Selkhosgiz. 912 pp. (In Russian)
McVean D.N. 1966. Ecology of Chondrilla juncea L. in south-eastern Australia. Journal of Ecology 54(2): 345-365. (In English)
Nikitin V.V. 1957. Weed vegetation of Turkmenia. Ashkhabad: AN Turkmen SSR. 581 pp. (In Russian)
Nikitin V.V. 1983. Weed plants of the USSR flora. Leningrad: Nauka. 454 pp. (In Russian)
Petrosyan V.G., Korneeva T.M., Nukhimovskaya Yu.D., Pavlov A.V., Bessonov S.A. 2003. Information search system on flora and fauna in reservations of Russia. Russia: http://www.sevin.ru/natreserves/content4.html . (In Russian)
Rubtsov N.I., ed. 1972. Keys to vascular plants of the Crimea. Leningrad: Nauka. 552 pp. (In Russian)
Shishkin B.K., Grubov V.I., eds. 1966. Keys to plants of Bashkir USSR. Moscow-Leningrad: Nauka. 496 pp. (In Russian)
Tolmachev, A.I., ed. 1977. Flora of North-East of the European part of the USSR. V. 4. Leningrad: Nauka. 312 pp. (In Russian)
Ulyanova T.N. 1998. Weed plants in flora of Russia and other FSU countries. Saint Petersburg: VIR. 233 pp. (In Russian)
Vasilchenko I.T., Pidotti O.A. 1975. Keys to weed plants of areas of irrigated agriculture. Leningrad: Kolos. 375 pp. (In Russian)
Visyulina O.D., Kotov M.I., Dobrochaeva N.M., Kuznetsova G.O., Morozyuk S.S., eds. 1970. Weed plants of Ukraine. Kiev: Naukova dumka. 508 pp. (In Ukrainian)
Wapshere A.J., Hasan S., Wahba W.K., Caresche L. 1974. The ecology of Chondrilla juncea in the western Mediterranean. Journal of Applied Ecology 11(2): 783-799. (In English)

Right and copyright:

All rights reserved. Copyright 2005 - O.E. Kravchenko & I.A. Budrevskaya (vector map).

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