WEED MIGRATION 719 



Umbelliferae. 



Conium maculatum, Poison hemlock. 

 Carum carvi, Caraway. 

 Pastinaca sativa, Wild parsnip. 

 Daucus carota, Wild carrot. 



Primulaceae. 

 Anagallis arvensis, Pimpernel. 



Apocynaceae. 



Apocynum androsaemifolium, Spreading dogbane. 

 A. cannabinum, Indian hemp. 



Asclepiadaceae. 



Asclepias speciosa, Showy milkweed. 

 A. syriaca, Milkweed. 



Convolvulaceae. 



Convolvulus sepium, Wild morning-glory. 

 C. arvensis, European bindweed. 

 Cuscuta epithymum, Clover dodder. 

 C. arvensis, Field dodder. 



Hydrophyllaceae. 

 Ellisia nyctelea, Waterleaf. 



Boraginaceae. 



Cynoglossum officinale, Hound's tongue. 

 Lappula echinata, Stickseed. 

 Symphytum officinale, Comfrey. 

 Echium vulgar e, Blue weed. 



Verbenaceae. 



Verbena bracteosa, Bracted vervain. 

 V. hastata, Blue vervain. 

 V. stricta, Hoary vervain. 



Labiatae. 



Nepeta cataria, Catnip. 

 N. hederacea, Ground ivy. 

 Lamium amplexicaule, Dead nettle. 



