PLANTS OF IOWA 207 



LAPPULA, Moench. 



2674. L. lappula, (L.) Karst. Burseed. 

 Introduced from Europe. In waste places. 



2675. L. texana, (Scheele) Britton. Hairy Stickseed. 

 On dry ridges and slopes. Common. 



2676. L. virginiana, (L.) Greene. Virginia Stickseed. 

 Along borders, in open woods. 



2677. L. americana, (A. Gray)Rydberg. Nodding Stickseed. 

 MERTENSIA, Roth. 



2678. M. virginica, (L.) DC. Virginia Cowslip. 

 In alluvial woods. Common. 



2679. M. pariculata, (Ait.) G. Don. Tall Lungwort. 

 In woods. 



MYOSOTIS, L. 



2680. M. virginica, (L.) B. S. P. Spring Scorpion-grass. 

 Sandy soil, infrequent. 



LlTHOSPERMUM, L. 



2681. L. arvensc, L. Corn Gromwell. 



In waste places; introduced from Europe. 



2682. L. latifolium, Michx. American Gromwell. 

 In dry thickets, etc. 



2683. L. canescens, (Michx.) Lehm. Hoary Puccoon. 

 In dry, usually open places. 



2684. L. linearifolium, Goldie. Narrow-leaved Puccoon. 

 In dry soil. 



2685. L. officinale, L. Gromwell. 

 Introduced from Europe. 



ONOSMODIUM, Michx. 



2686. 0. carolinianum, (Lam.) DC. Shaggy False Gromwell. 

 Sandy soil, infrequent. 



2687. 0. molle, Michx. Soft-hairy False Gromwell. 

 On dry prairie. 



ECHIUM, L. 



2688. E. vulgar e, L. Viper's Bugoss. 

 In fields ; introduced from Europe. 



