76 University of Texas Bulletin 



Sicyos angulata L. Star Cucumber. Wild Cucumber. Nimble Kate. 

 Found occasionally in moist gullies. Shoal Creek. 

 Widespread in eastern North America. 



CAMPANULACEAE Bellflower Family 



Specularia biflora Gray. Venus' Looking-glass. 



Common in woods and fields. A slender plant with blue, star- 

 shaped flowers. 



Southern and western states and Mexico. 



Specularia color ado ensis Buckl. Venus' Looking-glass. 

 Rare here. 

 Texas. 



Specularia leptocarpa Gray. 

 Not abundant here. 

 Central states. 



Specularia perfoliata A. DC. Venus' Looking-glass. Clasping Bell 

 Flower. 



Common in woodsl and valleys. The rounded leaves clasp the stem 

 by their heart-shaped bases. 



Widespread in eastern North America. 



LOBELIACEAE Lobelia Family 



Lobelia cardinalis L. Cardinal Flower. 

 Wet soil. Barton Springs. Rare here. 

 Widespread in eastern North America. 



CARDUALES 



AMBROSIACEAE Ragweed Family (Under Tribe Heliantheae of 



COMPOSITAE) 



Ambrosia aptera DC. Giant Ragweed. 



Abundant in moist soil on flood plains. Similar to A. trifida of 

 the eastern states. 



Te as to Arizona. 



Ambrosia psilostachya DC. Western Ragweed. Perennial Ragweed. 



Abundant in valleys. Similar to A. artemisae folia of the eastern 

 states, but perennial. 



Central and western states. 



