THE FLORA OF IOWA. 11 



Negundo 



Ash-leaved Maple. Box-Elder. 



170. aceroitlcs, Mcench. 



170. Box-Elder. 



POLYUALACK.F. 



MILKWORT FAMILY. 



Polygala 



Milkwort. 



171. incarnata, L. 



172. sanguinea, L. 



173. verticillata, L. 



174. Senega, L. 



171. Milkwort. 

 172. 



173- 



174. Seneca Snakeroot. 



LE(U "MINOSJK. 



PULSE FAMILY. 



Crotalaria 



Rattle-box. 



175. sagittalis, L. 



175. Rattle-box. 



Trifolium 



Clover. Trefoil. 



176. a /-reuse, L. 



177. pro tense, L. 



178. stoloniferum, Muhl. 



179. repens, L. 



180. procunibens, L. 



176. Rabbit-foot or Stone C. 



177. Red C. 



178. Running Bufifalo-C. 



179. White C. 



180. Low Hop-C. 



Melilotus 



Sweet-Clover. Melilot. 



181. officinalis, Willd. 



182. alba, Lam. 



181. Yellow S. 



182. White S. 



Bfedicago 



Medick. 



183. saliva, L. 



184. Inpnlina, L. 



183. Lucerne. 



184. Black Medick. Nonesuch. 



Psoralea 



185. rloribunda, Xutt. 



186. argophylla, Pursh. 



187. esculenta, Pursh. 



Psoralea 



185. Psoralea. 



186. 



187. Pomme de Prairie. 



Dalea 



Dalea 



188. alopecuroides, Willd. 



189. laxiflora, Pursh. (See App.) 



188. Dalea. 

 189. 



Petaloatemon 



Prairie-Clover. 



190. violaceus, Michx. 



191. candidus, Michx. 



190. Purple P. 



191. White P. 



Amorpba 



False Indigo. 



192. fruticosa, L. 



193. canescens, Xutt. 



192. False I. 



193. Lead-Plant. 



Robinia 



Loeust-tree. 



194. Pseudacaciq, L. 



194. False Acacia. Common L. 



Tepbrosia 



Hoary Pea. 



195. Virginiana, Pers. 



195. Goat's Rue. 



Astragalus 



Milk-Vetch. 



196. caryocarpus, Ker. 



197. Canadensis, L. 



198. Cooperi, Gray.* 



199. distortus, T. &. Gr. 



196. Ground Plum. 



197. Milk- Vetch. 

 198. 



199. 



Oxytropis 



Oxytropis. 



200. Lamberti, Pursh. 



200. Oxytropis. 



Glycyrrbiza 



Liquorice. 



201. lepidota. Nutt. 



201. Wild L. 



*Lee County. 





