Spiraea douglasii Hook.

English Steeple-bush ISEIA: B0 – Alert List
Lëtzebuergesch Douglas-Kluddertrausch EASIN
Français Spirée de Douglas Wikipedia: Wikipedia - English - Steeple-bush
Deutsch Douglas-Spierstrauch Wikispecies: Wikispecies - Spiraea douglasii
Nederlands Douglasspirea Back to the list of neophytes

Report the species

Report Spiraea douglasii to the National Museum of Natural History.

Importance and distribution in Luxembourg

Steeple-bush is a shrub tolerant to permanently water-logged soils and fluctuating water tables. It occurs mainly in riparian habitats such as swamps, marshes and bogs. This pioneer species needs full sunlight for optimal growth, flowering and fruiting but may survive under the tree canopy. Contrary to other North American Spiraea species, steeple-bush may produce fertile seeds under Central European climatic conditions. The species can easily form dense monospecific thickets that can colonise large areas, displace other plant species and generally dominate communities in wetland areas. It can rapidly colonise clearcut areas (Source: http://ias.biodiversity.be/species/show/139).

The first documented occurrence of the species in Luxembourg dates from 1959. It was found by J. Wirty on 20th June 1959 in Greiveldange, municipality of Stadtbredimus (Herbier specimen). In the Recorder database, no observations of the species are documented though.

Risk assessment

ISEIA protocol: 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 douglasii Hook. In: neobiota.lu - Invasive Alien Species in Luxembourg. URL: https://neobiota.lu/spiraea-douglasii/ [21.08.2019].

 Last updated on Tuesday, April 10, 2018.