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Bulletin Wisconsin Natnral History Society. [Vol. 5, No. 4. 
A. Pontica L. Eoman Wormwood. 
Escaped from gardens. Eare. 
A. ludoviciana Nutt. Lobed Cudweed. Menomonee Valley and waste 
places in city, also recorded as A. gnaphalodes Nutt. 
Erechtites hieracifolia (L.) Eaf. Fireweed. 
Whitefish Bay. 
Cacalia reniformis Muhl. Mesadenia reniformis (Muhl.) Eaf. 
Great Indian Plantain. Menomonee Valley. Common. 
C. atriplicifolia L. Mesadenia atriplicifolia (L.) Eaf. 
Pale Indian Plantain. Throughout county. Occasional. 
C. suaveolens L. Synosma suaveolens (L.) Eaf. 
Sweet-scented Indian Plantain. 
Milwaukee Eiver near city and near Whitefish Bay.. 
Senecio Balsamitse Muhl. Balsam Groundsel. 
"West of National Home." Occasional. 
S. aureus L. Golden Eagwort. 
Menomonee Valley and southern part of county. 
S. palustris (L.) Hook. Marsh Fleawort. 
Throughout county. Occasional. 
S. vulgaris L. Common Groundsel. 
In southern part of county. Common. 
Arctium Lappa L. Great Burdock. 
Everywhere. 
Cirsium lanceolatum (L.) Scop. Garduus lanceolatus L. 
Common Thistle. Everywhere. 
C. altissimum (L.) Spreng. Garduus altissimus L. Tall Thistle. 
Menomonee Valley and Whitefish Bay. Not uncommon. 
C. discolor Spreng. Garduus discolor (Muhl.) Nutt. Field Thistle. 
Throughout county. Common. 
C. tnuticum Michx. Garduus muticus (Michx.) Pers. Swamp Thistle. 
"A mile east of New Coeln." (T. Bruhin.) 
C. arvense (L.) Scop. Garduus arvensis (L.) Eobs. Canada Thistle. 
Everywhere. 
Centaurea Cyanus L. Blue-bottle. 
In southern and western parts of county. 
