Galeopsis speciosa (weed)

Galeopsis • Lamiaceae • Lamiales (weeds) • Eudicotyledons • all weeds • pests-diseases-weeds

Galeopsis speciosa (click on image to enlarge it)
Author(s): Johann Georg Sturm (Painter: Jacob Sturm)
Source: Wikimedia Commons

Galeopsis speciosa (weed) Mill. - (large-flowered hemp-nettle)

This weed is native to Europe and western Asia, but introduced in North America. Cereals and other crops are affected. It is similar to (Galeopsis tetrahit), but is somewhat larger and has yellow flowers.

Vernacular names
• Deutsch:	Bunter Hohlzahn
• English:	large-flowered hemp-nettle
• Français:	galéopse orné

Publications covering Galeopsis speciosa (weed)

Turkish Journal of Agriculture and Forestry (2009) 33, 315-323
Hamid Reza Mohammaddoust Chamanabad, Ardavan Ghorbani, Ali Asghari, Aleksander Mihailovic Tulikov and Frouddin Zargarzadeh (2009)
Long-term effects of crop rotation and fertilizers on weed community in spring barley

Weed Research (2006) 46, 353-361
L.M. Karlsson, Jal Ericsson and P. Milberg (2006)
Seed dormancy and germination in the summer annual Galeopsis speciosa

• Other images of Galeopsis speciosa (weed) (Wikimedia Commons and Open Media - click to enlarge)
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