ROSACEAE (ROSE FAMILY) 213 



with longer spreading hairs ; blossoms 

 less than a half-inch broad, with five 

 small, rounded, yellow petals, many 

 stamens, one pistil with two-parted 

 style, and a hairy, five-lobed calyx, 

 closed after flowering and surrounded 

 with a ring of hooked bristles ; these 

 lengthen as the two achenes within 

 mature, forming a small, top-shaped 

 bur with its outer row of hooks de- 

 flexed, the inner ones spreading and 

 erect, so that no sheep or woollen gar- 

 ment can touch a spike without attach- 

 ing most of its fruits. (Fig. 154.) 



Means of control 



If flocks are to be kept in their 

 neighborhood the plants should be 



searched out and closely cut while in 



n 11 r\ i. i. FIG. 154. Tall Hairy Agn- 



nrst bloom. Ur, When the ground IS mony (Agrimoniagryposepala). 



soft, they may be hand-pulled. x J. 



SOFT AGRIMONY 



Agrimbnia mdllis, Britton 



Native. Perennial. Propagates by seeds and by tubers. 



Time of bloom: July to October. 



Seed-time: August to November. 



Range : Connecticut to Michigan, southward to North Carolina and 



Kansas. 

 Habitat: Hillsides, dry woodland borders, and thickets. 



Roots tuberous, rather thick and elongated. Stems very slender, 

 two to five feet tall, with slim ascending branches, covered with fine, 

 very soft hair. Leaflets five to nine (mostly seven), with two or 

 three intermediate smaller pairs, oblong to elliptic or obovate, 

 obtuse, rather thick, scallop-toothed, grayish green and very softly 

 hairy on both sides ; stipules oblong to lance-shaped, and entire, or 

 sometimes broad and sharply toothed. Racemes long and wand- 

 like, interrupted, the flowers nearly a half-inch broad, bright yellow. 



