Seed Plants, Ferns, Fern Allies of the Austin Region 79 



Aster spiyiosus Benth. (Leucosyris spinosus Greene.) Spiny Aster. 



Abundant in places on the river bank. A partly woody plant with 

 many slender, almost leafless, somewhat spiny, green branches. The 

 leaves fall off early. 



From Texas to Mexico and southern California. 



Baccharis angusti folia Michx. 



A willow-like shrub very abundant in the bed of Barton Creek 

 above the springs. 



Southeastern states. 



Chaetopappa asteroides DC. 



Very common in open places in the postoak woods. A low, slender 

 plant with white, aster-like flowers. An early bloomer. 



Missouri to Texas. 



Chrysopsis microcephalia Small. Golden Aster. 

 Southeastern states. 



Chrysopsis villoso Nutt. Hairy Golden Aster. 

 Dry cpcn ground. University campus. 

 Plains and prairie States. 



Erigeron philadelphicus L. Daisy-fleabane. 



Woods and ravines. Heads with very numerous narrow, white 

 rays and yellow disks. 



Widespread in North America. 



Grindelia sguarrosa Dunal. Gum-plant. 



In dry ground along railroad tracks. Not common. A coarse, 

 resinous plant with large heads. 



Prairie and plains states. 



Gutierrezia texana T. & G. Broom-weed. 



Abundant in open, dry ground, fields and roadsides. A serious 

 pest in pastures. On of our most conspicuous fall weeds. Much 

 branched, with slender branches and small, yellow heads. 



Arkansas to Texas. Characteristic of the dry prairies. 



Gymnosperma corymbosa DC. 



Rocky hill. Mt. Bonnell. Somewhat similar to a golden rod. 

 Te as to Arizona and Mexico. 



Heterotheca subaxillaries Britt. & Rusby. 



Common in open dry ground. Blooming abundantly in the fall. 

 With rather large, yellow heads. 



Southeastern states. 



