Area of distribution and weediness of Galeopsis ladanum L.

Object description Download GIS-layers


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

Date of creation:




Accuracy of map:

Map was created using maps of natural scale 1:5,000,000-1:100,000,000 and published data.


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

Basic contents:

Vector map. Main distribution area is shown by polygon, while sporadic distribution is shown by points. Zone of weediness is shown by polygon.

Accuracy of classifier:

Within the weed distribution area, zones of main and sporadic distribution and the zone of weediness are shown. In the zone of weediness, G. ladanum is a pernicious weed.

Mapping procedure:

Areas of main and sporadic distribution and weediness were established following an analysis of published maps and literature. The distribution area of G.ladanum is based on the map of Hulten & Fries (1986). The boundaries of the zone of weediness were established using Nikitin (1983) and Ulyanova (1998) and were further specified in accordance with data on abundance and frequency of species occurrence taken from the below-mentioned references and adjusted in accordance with the boundaries of arable lands. According to Nikitin (1983), G.ladanum infests grains, more rarely tilled crops, in the southern part of the forest zone, in forest-steppe and northern steppe zones of the European part of the former USSR, and in Western and Eastern Siberia. Ulyanova included G.ladanum in the list of main weeds of crops in the European part of the former USSR and in Eastern Siberia (1998). According to Ulyanova et al. (1992), G.ladanum is a pernicious weed in the Arkhangelsk and Vologda Regions, where it is has 75-100% frequency of occurrence and 3-5 points of abundance.

Sources of data:

Dorogostayskaya, E.V. 1972. Weed plants of the Far North of the USSR. Leningrad: Nauka, 172 p. (in Russian).
Grossgeim, A.A. 1967. Flora of the Caucasus. V.7. Leningrad: Nauka, 896 p. (in Russian).
Hulten, E. & Fries, M. 1986. Atlas of North European Vascular Plants, North of the Tropic of Cancer. Konigstein. V. 1-3. 1172 p.
Malyshev, L.I., ed. 1997. Flora of Siberia. V.11. Novosibirsk: Nauka, 296 p. (in Russian).
Nikitin, V.V. 1983. Weed plants of the USSR flora. Leningrad: Nauka, 454 p. (in Russian).
Nikonov, A.A., ed. 1975. Weed plants of the Stavropol Territory. In: Proceedings of Stavropol research institute of agriculture, v. 32. Stavropol: Stavropol research institute of agriculture, 292 p. (in Russian).
Shlyakova, E.V. 1982. Field-weed plants of the Non-Chernozem zone of RSFSR. In: Korovina, O.N., ed. Catalogue of VIR world collection. Issue 338. Leningrad:VIR, 117 p. (in Russian).
Ten, A.G., ed. 1988. Control measures of field weed vegetation in Altai Territory. Recommendations. Novosibirsk: VASKHNIL, 40 p. (in Russian).
Tolmachev, A.I., ed. 1977. Flora of North-East of the European part of the USSR. V.4. Leningrad: Nauka, 312 p. (in Russian).
Ulyanova, T.N. 1981. Weed plants in wheat of the USSR. In: Korovina, O.N., ed. Catalogue of VIR world collection. Issue 320. Leningrad: VIR, 68 p. (in Russian).
Ulyanova, T.N. 1983. Weed plants of the Soviet Far East. In: Korovina, O.N., ed. Catalogue of VIR world collection. Issue 374. Leningrad: VIR, 48 p. (in Russian).
Ulyanova, T.N. 1998. Weed plants in the flora of Russia and other CIS states. St.-Petersburg: VIR, 344 p. (in Russian).
Ulyanova, T.N., Kondratenko, V.I., Ivanov, I.A. & Mal'kova, E.A. 1992. Weed plants of the Novgorod, Vologda and Arkhangelsk Regions. In: Erokhin, V.D., ed. Byulleten. VIR. Issue 229, p. 69-74 (in Russian).
Visyulina, O.D., ed. 1970. Weeds of the Ukraine. Kyiv: Naukova dumka, 508 p. (in Ukrainian).
Volkov, A.N., ed. 1935. Areas of distribution of the major weed plants in the USSR. Moscow & Leningrad: State Publishing House of Kolkhoz and Sovkhoz Literature, 152 p. (in Russian).
Vvedenskii, A.I., ed. 1961. Flora of Uzbekistan. V.5. Tashkent: AN Uz.SSR, 668 p. (in Russian).

Right and copyright:

All rights reserved. Copyright 2004 © T.D. Sokolova, I.A. Budrevskaya & N.N. Luneva (vector map, description).
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