Herbert Groh

• L'herbe à la puce
• Les plantes qui causent la fièvre des foins
• Peace-Athabaska weeds
• A milkweed survey in Ontario and adjacent Quebec
• Der Meniskusschaden des Kniegelenks als Unfall- und Aufbrauchsfolge
• Hoary Cresses in Canada
• Notes on common milkweed
• Plants of clearing and trail between Peace River and Fort Vermilion, Alberta
• Plants responsible for hay fever
• Turkestan Alfalfa as a medium of weed introduction
• Variation and abnormality in common milkweed (Asclepias syriaca Linn.)