PLANTS OF IOWA 229 



ERIGERON, L. 



2986. E. pulchellus, Michx. Robin's Plantain. 

 On dry slopes. 



2987. E. philadelphicus, L. Philadelphia Fleabane. 

 Common in woods and along borders. 



2988. E. annus, (L.) Pers. Larger Daisy Fleabane. 

 In fields and open places ; common. 



2989. E. ramosus, (Walt.) B. S. P. Daisy Fleabane. 



Very common in meadows and fields; a troublesome 



weed. 

 LEPTILON, Raf . 



2990. L. canadense, (L.) Britton. Horse- weed. 



A very common weed in waste places and fields. 



2991. L. divaricatum, (Michx.) Raf. Low Horse-weed. 



DCELLINGERIA, NeeS. 



2992. D. umbellata, (Mill.) Nees. Tall Flat-top White Aster. 

 In moist prairie. 



2993. D. humilis, (Willd.) Britton. Broad-leaved Flat-top 



White Aster. 

 In moist places. 

 ANTENNARIA, Gaertn. 



2994. A. campestris, Rydb. Prairie Cat's-foot. 

 Common on prairies. 



2995. A. plantaginifolia, (L.) Richards. Plantain-leaf Ever- 



lasting. 



Common on dry ridges. 

 ANAPHALIS, DC. 



2996. A. margaritacea, (L.) Benth. & Hook. Large-flowered 



Everlasting. 

 Dry soil. 

 GNAPHALIUM, L. 



2997. G. obtusifolium, L. White Balsam. 

 In dry open places ; common. 



INULA, L. 



2998. I. helenium, L. Elecampane. 

 Introduced. Along roadsides ; not common. 



