Seed Plants, Ferns, Fern Allies of the Austin Region 81 



Tribe HELIANTHEAE 



Berlandiera texana DC. 



Rather tall, white-hairy, weeds with perennial roots and large, 

 conspicuous yellow heads, of which the rays only bear seeds. 



Missouri, Louisiana and Texas. 



Coreopsis cardamine folia T. & G. Tickseed. 

 Open ground. 

 Southern prairie states. 



Dracopis amplexicaulis Vahl. (Rudbeckia amplexicaulis Cass.) 

 Shoal Creek Valley. 

 Gulf states. 



Eclipta alba Hassk. 



Moist ground. Common on the banks of Shoal Creek and in sim- 

 ilar situations. 



Eastern and southern states and tropical America. 



Encelia calva Gray. 

 Texas and Mexico. 



Engelmannia pinnatifida T. & G. 



Common in ravines and rich soil. A coarse plant, with large, 

 deeply pinnatifid leaves and large, yellow heads. 



Southern-central states. 



Helianthus annuus L. Sunflower. 



Roadsides in low places. The common sunflower. 

 Central states to California. Commonly cultivated. 



Helianthus cinereus T. & G. Sunflower. 



Found near the river. A small sunflower. Not common here. 

 Texas. 



Helianthus Maximilianii Schrad. Maximilian's Sunflower. 



Bull Creek region. A tall plant with large, handsome heads. 

 Planted on the campus near the library. 



Central plains and prairies. 



Helianthus praecox Engelm. 



Very common in roadsides in dry, open places. With triangular 

 leaves, white on the lower surface. 



Gulf states. 



