Descriptive Flora 



219 



long, soft, entire, narrowly oblong to oblanceolate, covered with 

 appressed, silky hairs, the margins ciliate with few "shaggy" 

 hairs. Ray flowers many. May to late fall. Dry limestone hills 

 and hillsides of the Edwards Plateau. 



CJirysopsis pilosa Nutt. 



A slender bright yellow composite growing with and similar 

 to Xanthisma texana but distinguished by the more numerous 

 linear, hairy bracts of the involucre, the glandular hairy foliage, 

 and soft, entire-margined leaves. Achenes pubescent, crowned 

 by a tuft of fine bristles twice as long as the body, and an outer 

 row of shorter, broader ones. Flowers close in the evening. This 

 plant is sometimes confused with Heterotheca but is easily dis- 

 tinguished from it as it lacks the strong-scented leaves. 



Xanthisma texanum DC. 



Plant with ascending branches, narrow, entire leaves ap- 

 pressed to the stems which are tipped by bright yellow, wax- 

 like composite flowers, 1 to iy 2 " across. Upper stem leaves 

 simple, alternate. Blades 1 to 2 inches long, narrow, sparingly 

 coarsely toothed or margined with minutely incurved teeth 

 scarely visible to the naked eye. Lower leaves longer, pinnatified- 

 toothed. Ray flowers a dozen or more. Bracts of the involucre 

 short, broad, never hairy, of different lengths and overlapping. 

 Branches leafy to the ends, which are tipped with the solitary, 

 bright yellow flowers that close at night and open again in the 

 full sun. Plants sold by seedsmen. A hardy annual. Flowers 

 all summer in the North and East where it is cultivated. April 

 to fall. Along roadsides and in pastures. 



Solidago serotina Ait. (Joldenrod. 



Late summer and fall blossoming plants with each slender 

 leafy stalk terminating in a big pyramidal panicle of many wide- 

 ly spreading or recurved branches bearing numerous erect, yel- 

 low heads on their upper sides. Leaves simple, alternate. Basal 

 leaves oblanceolate, 3 to 6 inches long, coarsely and shallowly 



