Seed Plants, Ferns, Fern Allies of the Austin Region 57 



Daucus pusillus Michx. Wild Carrot. Stick-tight. Queen Anne's 

 Lace. 



Fields, roadsides, and waste places. Very similar to the preceding 

 but blooming in the spring. 



Southern and western states. 



Eryngium Leavenworthii T. & G. Button Snake Root. 



Dry barren ground. A rigid plant with spiny leaves and flowers 

 in dense, spiny heads. 



Kansas to Texas. 



Hydrocotyle umbellata L. Marsh Pennywort. Water Pennywort. 

 Moneywort. 



Very abundant along the edges of streams. A creeping plant with 

 round glossy leaves and clusters of small white flowers. 



Southeastern states. 



Hydrocotyle verticillata Thumb. 

 Similar to the preceding. 

 Eastern and central states. 



Lomatium daucifolium Coult. & Rose. 

 Not common here. 

 Southern prairie states. 



Sanicula canadensis L. Snake-root. 

 Moist ground, Sidon Harris Park. 

 Eastern states. 



Sanicula gregaria Bicknell. Black Snake-root. 



In rich soil in shaded ravines. Onion Creek. Rare here. 

 Eastern and central states. 



Spermolepis echinatus Heller. 

 Roadsides, etc. 

 Southern states. 



Torilis nodosa Gaertn. Hedge Parsley. 



Very common in waste ground and on roadsides. University cam- 

 pus. The outer fruits of a cluster are covered with barbed spines, 

 the inner not. 



Naturalized from Europe and Asia and widely distributed on this 

 continent. 



