2. Corispermum pallasii Steven (syn.: C. leptopterum (Aschers.) Iljin, C. hyssopifolium var. leptopterum Aschers., C. sibiricum Iljin subsp. baicalense Iljin) (Siberia, N-Am.?) – A locally commonly naturalised alien. Apparently first recorded in Gent in 1917 along a railway track but probably only ephemeral. The naturalisation history of Corispermum pallasii in Belgium started in 1924 in Oostende. It was introduced through the port and immediately expanded to the surrounding coastal dunes (initially at Oostende but soon also to Bredene and Lombardzijde, Middelkerke and Westende). From 1929 onwards also known from inland locations around Antwerpen (sand raised sites): at first in the port-area near Ekeren (Wilmarsdonk) and soon spreading to suitable sandy habitats in Hoboken, Austruweel and Sint-Anna. Already very abundant (and probably naturalised) around 1942. At present, Corispermum pallasii has further extended its Belgian distribution. It is now abundant in most coastal dunes (ruderalised sites) and in large sand raised sites around Antwerpen and Gent. Elsewhere it is a regular but usually ephemeral alien: along railway tracks, in disused railway yards, at sand deposits,… So far, Corispermum pallasii has only been exceptionally recorded in Wallonia (for instance near a sand deposit in Huy in 2010 and near Doische in 2013).
Immature fruits of Corispermum pallasii usually have a broad, translucent, more or less slightly erose wing, a character of the closely related (and sometimes considered conspecific) C. intermedium. However, with age this wing is becoming narrower, opaque and entire in Corispermum pallasii (Verloove & Lambinon 2008).
Corispermum pallasii was long known as C. leptopterum in Belgium. Mosyakin (1995, 2003) pointed out that the plants here concerned should be referred to as Corispermum pallasii.
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Selected literature:
Bowra J. (1995) Corispermum leptopterum and the sand-dune flora at Emscote near Warwick. BSBI News 68: 33-35.
Brennenstuhl G. (2007) Zur Einwanderungs- und Ausbreitungsgeschichte von Corispermum leptopterum (Aschers.) Iljin im Raum Salzwedel. Mitteilungen zur floristischen Kartierung in Sachsen-Anhalt 12: 77-81.
De Beer D. (2006) Corispermum pallasii. In: Van Landuyt W., Hoste I., Vanhecke L., Van den Bremt P., Vercruysse W. & De Beer D., Atlas van de flora van Vlaanderen en het Brussels gewest. Instituut voor Natuur- en Bosonderzoek, Nationale Plantentuin van België en Flo.Wer: 305.
Dolnik C., Peyrat J., Volodina A. & Sokolov A. (2011) Neophytic Coripsermum pallasii (Stev.) (Chenopodiaceae) invading migrating dunes of the southern coast of the Baltic Sea. Pol. J. Ecol. 59(1): 95-103. [available online at: http://www.pol.j.ecol.cbe-pan.pl/article/ar59_1_09.pdf]
Evarts-Bunders P., Evarte-Bundere G., Bojāre A., Krasnopoļska D. & Nitcis M. (2016) Native bugseed species Corispermum intermedium Schweigg and alien Corispermum pallasii Steven in coastal habitats of Latvia - new knowledges of distribution and invasions. Acta Biol. Univ. Daugavp. 16(2): 165-174. [available online at: https://www.researchgate.net/publication/314187614_NATIVE_BUGSEED_SPECIE...
Gibson C. (1992) Corispermum leptopterum (Ascherson) Iljin in North Essex. BSBI News 62: 41.
Heitz C. & Weniger A. (1971) Corrigiola litoralis L. und Corispermum leptopterum (Aschers.) Iljin, zwei für die Schweiz seltene Adventivarten. Bauhinia 4: 191-196.
Hülbusch K.-H. (1977) Corispermum leptopterum in Bremen. Mitteilungen der Floristisch-soziologischen Arbeitsgemeinschaft N. F. 19/20: 73-82.
Langer A. (1995) Verbreitung und Vergesellschaftung von Chenopodium botrys L., Corispermum leptopterum (Aschers.) Iljin, Atriplex nitens Schkuhr und Sisymbrium irio L. auf Straßenstandorten in Berlin. Schriftenreihe für Vegetationskunde 27: 153-159.
Leopoldinger W. (1995) Ein bemerkenswerter Fund des Schmalflugeligen Wanzensamens, Corispermum leptopterum (Asch.) Iljin im niederosterreichischen Donautal bei Persenbeug. Linz. Biol. Beitr. 27(1): 285-290.
Saintenoy-Simon J. & Bruynseels G. (1982) Hirschfeldia incana (L.) Lagrèze-Fossat, Corispermum leptopterum (Aschers.) Iljin et Senecio inaequidens DC. dans la gare Josaphat (Schaerbeek, Bruxelles). Dumortiera 23: 26-28.
Köck U.V. (1986) Verbreitung, Ausbreitungsgeschichte, Soziologie und Okologie von Corispermum leptopterum (Aschers.) Iljin in der DDR:1. Verbreitung und Ausbreitungsgeschichte. Gleditschia 14(2): 305-325.
Köck U.V. (1988) Verbreitung, Ausbreitungsgeschichte, Soziologie und Okologie von Corispermum leptopterum (Aschers.) Iljin in der DDR: 2. Soziologie, Syndynamik, Synokologie. Gleditschia 16(1): 33-48.
Krisch H. (1987) Zur Ausbreitung und Soziologie von Corispermum leptopterum (Ascherson) Iljin an der südlichen Ostseeküste. Gleditschia 15: 25-40.
Mosyakin S.L. (1995) New taxa of Corispermum L. (Chenopodiaceae) with preliminary comments on taxonomy of the genus in North America. Novon 5: 340-353.
Mosyakin S.L. (2003) Corispermum. In: Flora of North America Editorial Committee (eds.), Flora of North America, vol. 4. Oxford University Press, New York-Oxford: 313-321.
Wegener U. (1987) Beobachtungen zur ökologischen Amplitude von Corispermum leptopterum (Aschers.) Iljin. Gleditschia 15: 41-46.
Verloove F. & Lambinon J. (2008) Neophytes in Belgium: corrections and adjustments. Syst. Geogr. Pl. 78: 63-79.