HARPERS GUIDE TO WILD FLOWERS 



Shepherd's Purse (Capsella Bursa-pastoris) . Page 79. Com- 

 mon weed. 



White Mustard (Brassica alba). Page 169. Cultivated, but 

 often found growing wild. 



Hedge Mustard (Sisymbrium officinale). Page 170. Naturalized 

 from Europe, this has become a weed. 



Spider-flower (Cleome spinosa). Page 81. An escape from 

 gardens where it is cultivated. A species, more often found in 

 gardens, has a most offensive scent when in blossom. This is 

 C. semdata. 



Mossy Stonecrop (Sedum acre). Page 171. An escape. 



Garden Orpine. Live-for-ever (S. purpureum). Page3i2. An 

 escape, on rocks. 



Syringa. Mock Orange (Philadelphus inodorus). Page 394. 



Large-flowered Syringa (P. grandiflorus) . Page 394. This 

 and the preceding are found wild in mountains and woods south- 

 ward, but often are cultivated and "established" in the North. 



Red Currant (Ribes vulgare). Page 385. The currant of our 

 gardens, found sometimes as an escape. 



Prairie or Climbing Rose (Rosa setigera). Page 440. An 

 escape. 



Dyer's Greenwood. Whin (Genista tinctoria). Page 428. An 

 escape. 



Bristly Locust. Rose Acacia (Robiniahispida). Page 440. An 

 escape. 



Alfalfa (Medicago sativa). Page 313. Cultivated and escaping. 



Spring Vetch (Vicia sativa). Page 316. A forage plant, culti- 

 vated and sometimes spreading to waste ground. 



Pea Vine (V. americana) . Page 453. 



Common Flax (Linum usitatissimum) . Page 319. An escape. 



Lady's Sorrel (Oxalis corniculata) . Page 181. A weed. 



Hop Tree. Shrubby Trefoil (Ptelea trifoliata). Page 401. A 

 shrub cultivated and often found established in light woods. 



Snow-on-the-mountain (Euphorbia marginata). Page 90. An 

 escape. 



Cypress Spurge (E. Cyparissias) . Page 34. An escape. 



Caper Spurge. Mole Plant (E. Lathyrus). Page 34. 



Poison Oak. Poison Ivy (Rhus Toxicodendron). Page 385. The 

 poison ivy, which is gaining ground wherever permitted, must 

 be reckoned among our most undesirable weeds. 



Common Buckthorn (Rhamnus cathartica). Page 390. Often 

 cultivated as a hedge plant, and found in some places natu- 

 ralized. 



Althaea (Hibiscus syriacus). Page 267. An escape. 



Common Mallow. Cheeses (Malva rotundifolia) . Page 92. 

 Common in cultivated ground. 



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