Quatre adventices sur les trottoirs de la ville de Liège: Catapodium marinum, Diplotaxis muralis, Elsholtzia ciliata et Phytolacca esculenta

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith