Hieracium lachenalii (weed)
From Pestinfo-Wiki
Hieracium lachenalii (weed) Suter 1802 - (common hawkweed)
This dandelion-like plant is native to Europe, but has invaded other regions like North America and New Zealand.
Publications covering Hieracium lachenalii (weed)
Canadian Journal of Botany - Revue Canadienne de Botanique (2003) 81, 1113-1128
Kate MacQuarrie and Christian Lacroix (2003)
The upland hardwood component of Prince Edward Island's remnant Acadian forest: determination of depth of edge and patterns of exotic plant invasion
- Other images of Hieracium lachenalii (weed) (Wikimedia Commons and Open Media - click to enlarge)