Parentucellia viscosa (L.) Caruel (syn.: Bartsia viscosa L.) (Medit., SW As., SW Eur., Macaronesia) – A rare but probably increasing, locally naturalized alien. Known since 1902 when Parentucellia viscosa was first recorded in Rijkevorsel. Since then Parentucellia viscosa was regularly recorded but its genuine, local naturalization probably is a fairly recent phenomenon. At present it is known from some localities in the Brussels area (e.g. Saintenoy-Simon 1996, Saintenoy-Simon 1998), from port areas in Antwerpen and Zeebrugge and from a few additional localities elsewhere in Flanders (see Hoste & al. 2015 for an up-to-date overview). In some of these places the species is present since several decades and with numerous individuals.
Parentucellia viscosa is a native species in the British Isles (Stace 2010) and northwestern France (Tison& de Foucault 2014), close to the Belgian frontiers.
Selected literature:
Burton R.M. (1982) Botanical records for 1981. London Naturalist 61: 100-107.
Buthod A.K. & Hoagland B.W. (2006) Galium tricornutum (Rubiaceae) and Parentucellia viscosa (Scrophulariaceae) new to Oklahoma. Sida, Contrib. Bot. 22(2): 1235. [available online at: http://www.biodiversitylibrary.org/item/34586#page/1255/mode/1up]
Dunn T.C. (1989) Yellow Bartsia in Tyne and Wear (v.c. 66). Vasculum 74: 37-38.
Garve E. & Theunert R. (1983) Zwei neue Nachweise von Parentucellia viscosa (L.) Caruel (Scrophulariaceae) in Niedersachsen. Beitr. Naturk. Niedersachsens 36(2): 70-74.
Hoste I., White W. & Decleer K. (2015) Parentucellia viscosa in Eeklo en Beernem: een neofyt op weg naar inburgering? Dumortiera 106 : 53-57. [available online at: http://www.br.fgov.be/DUMORTIERA/DUM_106/Dum_106_53-57_Hoste%20et%20al_P...
Juan R., Pastor J. & Fernández I. (1998) Estudio de frutos y semillas en Parentucellia Viv. (Scrophulariaceae) y sus implicaciones taxonómicas. Acta. Bot. Malac. 23: 51-57. [available online at: http://riuma.uma.es/xmlui/handle/10630/3481]
McMullen J.A. & MacPherson P. (1995) Yellow Bartsia in the Glasgow area. Glasgow Naturalist 22: 526-527.
Palmer J.R. (1982) Yellow Bartsia, Parentucellia viscosa (L.) Carvel in West Kent. Bull. Kent Field Club 27(4): 2.
Puntieri J. & Brion C. (2004) Parentucellia viscosa (Scrophulariaceae), nueva especie adventicia en Argentina. Bol. Soc. Argent. Bot. 38(3-4): 341-342.
Rehmbock O. (1975) Parentucellia viscosa (L.) Caruel - ein seltener Fremdling unserer Flora. Göttinger Flor. Rundbr. 9(1): 8-10.
Reineke D. (1980) Parentucellia viscosa (L.) Caruel auf MTB 8221/1. Göttinger Flor. Rundbr. 13(3): 78-79.
Rodrigues R.R. & Welat E. (1975) Parentucellia viscosa (L.) Cr., una especie adventicia nueva para la flora de Chile. Bol. Soc. Biol. Concepcion 46: 195-198. [available online at: https://ia800303.us.archive.org/12/items/boletindelasocie4647197374soci/...
Saintenoy-Simon J. (1996) Groupe Flore Bruxelloise: rapport des activités en 1995. Adoxa 11: 1-16.
Saintenoy-Simon J. (1998) Excursions 1997 du Groupe Flore Bruxelloise. Adoxa 20-21: 15-32.
Singhurst J.R. & Holmes W.C. (2004) Prenanthes barbata (Asteraceae) and Parentucellia viscosa (Scrophulariaceae) new to Oklahoma. Phytologia 86(2): 107-109. [available online at: http://www.biodiversitylibrary.org/part/96751#/summary]
Stace C. (2010) New flora of the British Isles, 3th ed.: XXXII + 1232 p. Cambridge University Press.
Suneson S. (1976) Parentucellia viscosa i naturling Svensk vegetation. Svensk Bot. Tidskr. 70: 61-64.
Tison J.-M. & de Foucault B. (coord.) (2014) Flora Gallica. Flore de France. Editions Biotope, Mèze : xx + 1196 p.
Van Haperen A.M.M. & de Kogel T.J. (1981) Het voorkomen van Hordeum jubatum L. en Parentucellia viscosa (L.) Caruel in Zuidwest-Nederland. Gorteria 10(9): 159-168. [available online at: http://www.repository.naturalis.nl/document/567183]
Wattez J.-R. & Claus G. (1968) Parentucellia viscosa Caruel espèce nouvelle pour le nord de la France. Bull. Soc. Bot. N. France 21: 147-153.
Wilde J. (2000) A new site for Parentucellia viscosa in Co. Down (V.C. H38). BSBI News 83: 27. [available online at: http://archive.bsbi.org.uk/BSBINews83.pdf]