106 FLORA OF MICHIGAN. 



219. PETASITES, Tourn. SWEET COLTSFOOT. 



644. P. palmata, Gray. 



Harrisville, Oscoda, Alger, and westward; Keweenaw Co., F. 



220. ABXICA, L. 



645. A. Cliamissonis, Less. 



Shores of Lake Superior, Gray's Man. ; Copper Harbor, Whitney's Catalogue. 

 221. SE^"ECIO, Tourn. GROUNDSEL. 



*646. S. VULGARIS, L. Common Groundsel. 

 Flint; Macomb Co.; S. W. Mich., Wright's Cat. 



*647. S. aureus, L. Golden Ragwort. Squaw- weed. Th. 



Very variable. Common. 



*648. var. obovatus, Torr. & Gray. 



More common southward. 



649. var. Balsamitae, Torr. & Gray. Th. 



Abundant northward. Mackinaw City. 



222. CACALIA, L. INDIAN PLANTAIN. 



650. C. suaveolens, L. Indian Plantain. 



Lodi, Miss Clark, in Winch. Cat. Gray's Manual. Rare. 



*651. C. atriplicifolia, L. Pale Indian Plantain. C. & S, 



Woods. Ionia Co.; 8. Mich., Wright's Cat. Frequent. 



652. C. tuberosa, Nutt. Tuberous Indian Plantain. S. 



S. Mich., Wright's Cat.; 3 miles east of Kalamazoo, 1888, Dr. D. Houghton; Mottville, I. N. 

 Mitchell. 



223. ERECHTITES, Raf. PIBEWEED. 



*653. E. liieracifolia, Raf. Fireweed. Th. 



New clearings. Common, northward. 



224. ARCTIUM, L. BURDOCK. 



*654. A. LAPPA, L. Burdock. Th. 



Waste places. Common. 



655. var. MINUS, Gray. 



Keweenaw Co., F. 



225. CNICUS, Tourn. COMMON OR PLUMED THISTLE. 



*656. C. LANCEOLATUS, Hoffm. Common Thistle. Th. 



Roadsides and fields. Common. 



657. C. horridulus, Pursh. Yellow Thistle. 



N. shore Lake Superior, Agassiz ; Grand Detour, Porter. 



658. C. Pitcheri, Torr. 



Sand dunes. South Haven ; and northward to L. Superior; Sand Point, Saginaw Bay. Frequent. 



659. C. unclulatus, Gray. N. & U. P. 



" Islands of L. Huron and Michigan," Gray; Drummond's I., Winch. Cat. 



*660. C. altissimus, Willd. C. & S. 



Ionia Co.; Flint; Macomb Co. Infrequent. 



*661. var. discolor, Gray. C. & S. 



Meadows. Montcalm Co.; Ionia Co.; Flint; and southward. Flowers sometimes white. Infrequent. 



*662. C. muticiis, Pursh. Swamp Thistle. Th. 



Swamps. Frequent. 



