ROSE FAMILY. Rosacea. 



Norway 

 Cinquefoil 



Potentilla 

 Norvegica 

 Yellow 

 June- 

 September 



June- 

 September 



A weedy plant differing from the com- 

 mon cinquefoil by an extremely hairy stem 

 and leaf ; the latter is composed also of 

 three leaflets instead of five, and it slightly 

 suggests the strawberry leaf. The five 

 not very conspicuous petals are somewhat 

 isolated in the green setting of the flower, 

 which is very leafy in character. There are 15-20 sta- 

 mens. 12-30 inches high. In dry or waste ground, 

 from Me., south to S. Car , and west. The name is 

 from potent for the plant's reputed medicinal powers. 



^ . , . . A similar stout plant, with a character- 

 Rough^fruited .... , , ^ , , m, 



Cinquefoil istically rough, horned seed-vessel. The 



Potentilla recta five rather narrow leaflets are deep green, 

 Yellow very hairy beneath, and slightly so above. 



The flowers are pure yellow, and | inch 

 broad ; the petals are much larger than the 

 lobes of the calyx (flower-envelop), which is the reverse 

 of the case with the Norway cinquefoil. Erect, 1-2 feet 

 high. Adventive from Europe, and in the vicinity of 

 old gardens and waste grounds. Me., south to Va., and 

 west to Mich. Found at Exeter, Penobscot Co., Me. 



A small species remarkable for its sil- 

 very character. The leaflets are dark 

 green above and silver white beneath. 

 The stem is also covered with the silky 

 white wool, beneath which appears the 

 pale terra-cotta tint of its surface. The 

 five wedge-shaped, narrow leaflets are 

 rolled back at the edge, and quite deeply cut. The pure 

 yellow flowers are rather small, and loosely clustered at 

 the ends of the branches. 5-12 inches long. In dry and 

 sterile fields, or sandy soil, Me., south to N. J., and west 

 to the Daks. 



Silvery 

 Cinquefoil 



Potentilla 

 argentea 

 Yellow 

 May- 

 September 



9 



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