Euphorbia glyptosperma Engelm. (syn.: Chamaesyce glyptosperma (Engelm.) Small) (Am.) – An exceptional and ephemeral alien. Recorded only once as a grain alien on the unloading quay of the Albertkanaal near Schoten in 2003 (Verloove 2006).
Selected literature:
Hügin G. & Starlinger F. (1997) Erstnachweis für Chamaesyce glyptosperma in Mitteleuropa (mit Berücksichtigung der übrigen europäischen Vorkommen). Flor. Rundbr. 31(2): 112-117.
Roux J.-P. (1992) Euphorbia glyptosperma Engelm., taxon nouveau pour la flore de France. Monde Pl. 443: 4-8.
Sirbu C. & Şuşnia I. (2018) New records in the alien flora of Romania: Euphorbia serpens and E. glyptosperma. Journal of Plant Development 25: 135-144. [available online at: http://www.plant-journal.uaic.ro/docs/2018/12.pdf]
Somlyay L. (2009) Occurrence of Chamaesyce glyptosperma, and a survey of the genus Chamaesyce (Euphorbiaceae) in Hungary. Ann. Hist.-Nat. Musei Nat. Hung. 101: 23-32.
Verloove F. (2006) Graanadventieven nieuw voor de Belgische flora, hoofdzakelijk in de periode 2001-2003. Dumortiera 88: 1-6. [available online at: http://alienplantsbelgium.be/sites/alienplantsbelgium.be/files/dum88p1.pdf]