176 WEEDS OF THE FARM AND GARDEN 



Night-flowering Catchfly (Silene noctiflora, L.). A tall 

 glandular pubescent plant with few large, white, 

 fragrant flowers, opening at night. A weed in cultivated 

 grounds. 



Bladder Campion (Silene latifolia, (Mill.) B. and B.). 

 A glaucous plant with opposite, ovate-lanceolate leaves ; a 

 globose, inflated calyx, petals two-cleft. Flowers white. 

 Common in clover fields, Iowa and eastward. 



Corn Cockle (Agrostemma Githago, 

 L.). Tall, silky annual, or perennial; 

 with linear leaves and purplish red 

 flowers. A weed in grain fields and by 

 roadsides. 



Cowherb (Saponaria Vaccaria, L.). 

 An annual, glabrous plant, with pale 

 red flowers in clusters, and ovate-lance- 

 olate leaves. A weed in grain fields. 



Soapwort or Bouncing Bet (Sapo- 

 naria officinalis, L.). A coarse, smooth 

 perennial; leaves smooth, ovate or el- 

 liptical, two to three inches long, three 

 to five-ribbed, petioled ; flowers large in 

 dense, corymbose clusters; calyx tubu- 

 lar, petals pale pink, or nearly white, 

 fragrant. A common escape eastward, 

 coSfe (%?rostemma Illinois, Iowa, Wisconsin, less common 

 Githago). (Ada Hay- in the Rocky Mountains, 

 den modified from p urs i ane Family (Portulacaceae). 



Clark and Fletcher.) _ 



Succulent-leaved herbs, with regular 



unsymmetrical flowers, two sepals and five petals ; 

 stamens numerous or few; ovary one-celled, in fruit be- 

 coming a pod with many or few seeds. A small order of 

 about 150 species, mostly native to North America. A 

 few of the species, like the moss rose (Portulaca grandi- 

 flora), are cultivated for ornament, and the common 

 purslane is cultivated as a vegetable. 



