9 



BACCHARIS BAHIA 261 



(n) Stems and peduncles hairy, or 



at least with hairy lines 

 r. Lower leaves ovate and heart- 

 shaped, long-petioled ; rays 

 blue to violet A. lindleydnus 



s. Leaves lanceolate, spatulate to 



linear 



(r) Lower leaves spatulate or 

 oblong-spatulate ; heads 

 mostly few-several, in 

 flat-topped clusters A. adscendens 



(s) Leaves lanceolate to linear 

 h. Bracts of 1-2 different 

 lengths; rays violet to 

 purple A.longifolius 



i. Bracts of 3-5 different 



lengths ; rays often white A. salicifolius 



BACCHARIS Linne 1753 



(Named for Bacchus) 



Heads without rays, dioecious, achenes ribbed, somewhat flattened, 

 pappus of hair-like bristles, shorter in the staminate flowers ; receptacle 

 flat without chaff, involucre bell-shaped, the bracts imbricated in several 

 rows ; heads in panicles or corymbs ; leaves alternate, simple ; herbs or 

 shrubs. 



1. Stems herbaceous, except for a woody base 



a. Leaves linear, entire; pappus elongating in 



fruit, 4 times as long as the 8-10-ribbed 



achene B. Wrightii 



b. Leaves long-lanceolate, somewhat toothed; 



pappus little elongated in fruit; achene 5- 



ribbed B. glutinosa 



2. Shrubs, 3-10 ft. high 



a. Pistillate heads 5-10 mm. broad; involucral 



bracts all acute B, salicma 



b. Pistillate heads 3-5 mm. broad; outer bracts 



obtuse B. Emoryi 



BAHIA Lagasca 1816 BAHIA 

 (Named for Bahi, a Spanish botanist) 



PI. 41, fig. 1. 



Heads with yellow pistillate ray-flowers or none, disk-flowers perfect, 

 yellow, achenes linear to oblong, 4-angled, pappus of several papery scales ; 



