SUNFLOWER FAMILY 185 
3. Holocarpha obcénica (Clausen & Keck) Keck. San Joaquin Tarweed. 
Fig. 5299. 
Hemixonts ebcontce ee & Keck, Madrofio 3: 7. 1935. 
k, loc. cit. 
Holocene obconica Keck, Aliso 4: 111. 1958. 
Stem 1.5-8(-12) dm. high, “teh is shaft replaced by several divaricate branches below the 
middle, the branches paniculately eae o forma sag nse twiggery ; herbage strongly resinous 
and odorous. Leaves like Greats sine ara e basal more hispid and the omiduchlar often wel 
spaced; heads paniculate on long s fr ‘pene ict invol 4-5 mm. hi ne i 
bearing ener few ahahrt psn parser 3 the termi inal one less prominent than in virgata, the 
surface other glabrous or minutely glandular, carele more or less hispid but never perubulent, 
often “fai ling ee eevee completely pe a ac - 
In open fields and hillsid ne; 
western "Prana County and Siren’ Foothills “OF —, Pe Tular 
Alameda iene acne Re 
nner South Coast Ranges from Se arcgscee County to 
re Counties, California. Type locality: Tesla, 
Holocarpha obco subsp. autu s Keck, Aliso 4: 112. 1958. Central shaft poe homie by short 
sterile ate fin poe with slang like ee ves and progr essively shorter from the base u rd, so that before 
anthesis the plants form tapering green columns; ean bap an exceptionally narrow; Renan sies branches rela- 
tively short. On arid plains, Upper Sonoran Zone; orth and east of Mount Diablo, Contra Costa County, Cali- 
fornia. Type locality: west of Beece, Sept.— 
52: H alyculata 5297. Holocarpha ornare 
5296. Hemizonia clevelandii 5298. Holocarpha vir 
