Parthenocissus inserta (A. Kerner) Fritsch

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Report the species

Report Parthenocissus inserta to the National Museum of Natural History.

General note on Parthenocissus spp.

Originally observed in man-made habitats, these popular garden plants can be found increasingly in natural habitats like coastal dunes, riparian habitats and wood margins (Parthenocissus inserta) or rock outcrops (Parthenocissus quinquefolia). They usually thrive on nutrient-rich soils. Seeds are dispersed over long distances by birds. With its dense growth, the plant may cover, out-compete and kill native vegetation (Branquart et al. 2011).

Status and distribution in Luxembourg

Distribution map of Parthenocissus inserta (A. Kerner) Fritsch in Luxembourg. Data source: Recorder-Lux, iNaturalist & GBIF, 2019-12-05.

The oldest herbarium specimen at the MNHNL was collected in July 1883 by Edmond Joseph Klein (1866-1942) from a cultivated false Virginia creeper in Wiltz (Specimen № 16636, MNHNL 2000-). The next scientific record that we know of was made under its synonym Parthenocissus vitacea Hitchc. by Jean-Jacques Kariger in 1957 on the Wurthsberg in the Clausen district of Luxembourg City (Kariger 1959: 74; MNHNL 2000-).

Currently, 4 records of the false Virginia creeper are accessible through the MNHNL-mdata portal (MNHNL, iNaturalist & GBIF 2019).

This south and western North American species is melliferous and cultivated to cover walls or facades. Quite frequently subspontaneous or naturalised locally: old walls, hedges, ruderalized forest edges, wastelands, stream banks, slag heaps, railway ballast (Lambinon & Verloove 2012: 457).

Parthenocissus inserta (A. Kerner) Fritsch has long been confused with Parthenocissus quinquefolia (L.) Planch. originating from North America. However, the latter is distinguished by its more branched twists (5-8 twists per twist, compared to gen. 3-5 in P. inserta), with branches provided at their end with a differentiated adhesive disc (simply swollen at their end in P. inserta) and by its leaflets with more obtuse and generally less deep teeth. A hybrid between the two species is also reported. It remains to be seen whether P. quinquefolia and the above-mentioned hybrid have been found in a subspontaneous state in the wild (Lambinon & Verloove 2012: 457).

Risk assessment

ISEIA protocol: B1 (3+3+2+2), reassessed on 10 July 2018 by C. Ries and M. Pfeiffenschneider. Originally assessed together with Parthenocissus quinquefolia as Parthenocissus spp. C1 (1+1+1+1) (Ries et al. 2013: 18).

Bibliography

  • Branquart, E., P. Dupriez, S. Vanderhoeven, W. Van Landuyt, F. Van Rossum & F. Verloove, 2011. Harmonia database: Parthenocissus spp. Harmonia version 1.2, Belgian Forum on Invasive Species. URL: http://ias.biodiversity.be [accessed on 2019-10-14]
  • Kariger, J.-J., 1959. Florule et capitale: Le Wurthsberg de Clausen et quelques hauteurs analogues. Bull. Soc. Nat. luxemb. 62: 59-81. [PDF 1302 KB]
  • Lambinon J. & F. Verloove, 2012. Nouvelle flore de la Belgique, du grand-duché de Luxembourg, du Nord de la France et des régions voisines. Sixième édition. Avec la collaboration de L. Delvosalle, B. Toussaint, D. Geerinck, I. Hoste, F. Van Rossum, B. Cornier, R. Schumacker, A. Vanderpoorten et H. Vannerom. Jardin botanique national de Belgique, Meise. CXXXIX + 1195 pp. ISBN : 9789072619884.
  • MNHNL, 2000-. Parthenocissus inserta (A. Kerner) Fritsch in Recorder-Lux, database on the natural heritage of the Grand Duchy of Luxembourg. Musée national d’histoire naturelle, Luxembourg. URL: https://mdata.mnhn.lu [Accessed 2019-10-14]
  • MNHNL, iNaturalist & GBIF, 2019. Parthenocissus inserta (A. Kerner) Fritsch in MNHNL-mdata, online portal combining species observation from Recorder-Lux, iNaturalist and GBIF. National Museum of Natural History, Luxembourg. URL: https://mdata.mnhn.lu [Accessed 2019-10-14]
  • Ries, C., Y. Krippel, M. Pfeiffenschneider & S. Schneider, 2013. Environmental impact assessment and black, watch and alert list classification after the ISEIA Protocol of non-native vascular plant species in Luxembourg. Bull. Soc. Nat. luxemb. 114: 15-21. [PDF 652 KB]

 Page content last updated on 2019-11-20. Last proofread by Caroline Grounds on 2019-11-20.