Spiraea ×billardii Hérincq

English Billard’s bridewort ISEIA: B1 – Watch List
Lëtzebuergesch Billard-Kluddertrausch EASIN
Français Spirée de billard Wikipedia: Wikipedia - Français - Spirée de billard
Deutsch Billards Spierstrauch Wikispecies: Wikispecies - Spiraea × billardii
Nederlands Billardspirea Back to the list of neophytes

Importance and distribution in Luxembourg

The first documented occurrence of Spiraea ×billardii in Luxembourg dates from 2011. It was found by Xavier Mestdagh on 27th June 2011 in the municipality of Parc Hosingen. Only five observations are indicated in the Recorder database.

The species is a sterile horticultural hybrid between S. alba et S. douglasii. It is a fast-growing rhizomatous species, propagating clonally, and mainly growing in ruderal areas and in riparian habitats. Just as other Spiraea species, it may easily form dense monospecific thickets smothering the native vegetation (Source: http://ias.biodiversity.be/species/show/142).

Risk assessment

ISEIA protocol: B1 (2+2+3+2) = Watch List, reassessed on 24 January 2019 by C. Ries and M. Pfeiffenschneider. Original assessment: B0 (2+2+3+2) = Alert List (Ries et al. 2013: 19).

Bibliography concerning Luxembourg

  • 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]

Suggested citation of this webpage

Ries, C. & M. Pfeiffenschneider (Eds.), 2019. Spiraea ×billardii Hérincq. In: neobiota.lu - Invasive Alien Species in Luxembourg. URL: https://neobiota.lu/spiraea-x-billardii/ [25.03.2019].

 Last updated on Thursday, January 24, 2019.