WILD FLOWERS OF NEW YORK 131 



to oblong, blunt at the apex, narrowed at the base, one-half to i inch long, 

 toothed. Flowers yellow, one-fotirth to three-fourths of an inch broad 

 on slender, axillary, one-flowered peduncles; the first flower appearing 

 from the axil of the second stem leaf; petals five, broadly oval, slightly 

 longer than the acute calyx lobes and the linear-lanceolate bractlets; 

 stamens about twenty. 



In dry soil of meadows and fields. New Brunswick to Georgia, 

 Minnesota and Texas. Flowering from April to August. 



The genus Potentilla contains a number of representatives in New 

 York, several of which are introduced species. Of these, the most common 

 is the Rough Cinquefoil (Potentilla monspeliensis Linnaeus), 

 with stout, erect, hairy stems and leaves, and yellow flowers in which the 

 calyx lobes exceed the petals in length. 



The Silvery Cinquefoil (Potentilla argentea Linnaeus) is a 

 native species of dry soils or rocky places, with spreading or ascending, 

 white, woolly-pubescent stems, leaflets green and smooth above and white- 

 tomentose beneath, the margins re volute, and small yellow flowers. 



Rough-fruited Cinquefoil 



Potentilla recta Linnaeus 



Plate 95 



Stems erect, stout, branched above, villous-pubescent, i to 2 feet 

 high from a stout, perennial root, with ovate-lanceolate stipules, the 

 lower foliaceous and cut. Leaves digitately five to seven-foliate, petioled 

 or the upper leaves nearly sessile; leaflets oblanceolate, blunt at the apex, 

 narrowed at the base, pubescent with scattered hairs above, more densely 

 pubescent beneath, sharply toothed, i to 3 inches long. Flowers numerous, 

 bright or dull yellow, about three-fourths of an inch broad, in terminal, 

 cymose clusters; stamens about twenty. 



Roadsides, fields and waste places, Maine to Ontario, New York, 

 Virginia and Michigan. Naturalized from Europe and Asia. Flowering 

 from June to September. 



