Galinsoga parviflora Cav. 



Abundant along ditches, at Vernon, Los Angeles County, Braunton in 1902. 

 Not otherwise reported from the state. Native of South America. 



Hemizonia Fitchii Gray. 



Quite abundant in a wheat field. Las Flores rancho, on the Mojave river in 

 188.;. iVative of central California. 



Eclipta alba Hassk. 



Naturalized in the bottom lands of the Colorado river , thence waterborne to the 

 Salton Sink, where it is cominon along ditches and in irrigated fields. Casual near 

 Los Angeles, T. W". Minthorn in 1907. Native of tropical America. 



Helianthus annuus L. Sunflower. 



Long naturalized and common in cultivated grounds, notably as an after- 

 math in grain fields, where it often forms a dense, pure stand; frequent in un- 

 broken soils, but not appearing indigenous. Rare in fields in Imperial Valley, 

 Parish in 1913. In the Mojave Uesert at an abandoned soda works at Soda Lake, 

 and in the streets at Barstow and Victorville, in 1916. Common throughout the 

 state. Native of North America. 



Helianthus petiolaris Nutt. 



Introduced, probably in foul grain seed, in fields at Harlem Springs, near San 

 Bernardino, where it was abundant in 1910, but is now apparently extinct. Native 

 from Minnesota to Arizona. 



Verbesina australis Baker. 



Oxnard, Ventura county, Davy in 1901. Native of Mexico. 



Verbesina encelioides B. & H. var. exauriculata Robins. & Greenm. Crownbeard. 



Naturalized, but infrequent; usually in or about grain fields. El Monte, Parish 

 in 1882, and Johnston in 1918. Agua Mansa, near Colton, Parish in 1897. Cahuenga 

 Pass, Hall in 1905. Native from Kansas to Texas. 



Bidens frondosa L. Beggar's-ticks. 



Locally adventive at Los Angeles, Moxley in 1916, and Davidson in 1917. Abun- 

 dantly naturalized in the delta lands and islands of the lower Sacramento river. 

 Native of the eastern states. 



Bidens pilosa L. Bur Marigold. 



An early immigrant, abundantly naturalized along ditches and on wet banks. 

 In the Colorado Desert a single plant at Mecca, in 1913. Native of the West Indies 

 and South America. 



Melampodium perfoliatum HBK. 



Probably introduced during the mission period, and long naturalized in waste 

 places at Los Angeles. Not known elsewhere in the United States. Native of 

 Mexico. 



Xanthium italicum Mor. 



Los Angeles, Hasse, the onlj' California collection. Native of Italy. 



Xanthium pennsylvanicum Wallr. Cocklebur. 



A pernicious weed, long naturalized, and common in cultivated and waste 

 lands, especially in lowland pastures. Common in the overflowed bottom lands of 

 the Colorado River at Fort Yuma, Parish in 1913, thence waterborne to Salton 

 Sink, where widely distributed in irrigated grounds, but not abundant. Common 

 throughout the state. Native of the eastern LTnited States. 



Xanthium strumarium L. Cocklebur. 



Colorado Desert, abundant in the overflowed bottom lands of the Colorado 

 River at Fort Yuma, Parish in 1913.'*" Cameron Lake, T. S. Brandegee. Native of 

 the eastern United States and Mexico. 



Xanthium spinosum L. Spanish Needles. 



Long naturalized and widely distributed, mostly by roadsides and in waste 

 places, but seldom abundant, and no more so now than 35 years ago. Through- 

 out the state. Native of Europe. 



Bellis perennis L. English Daisy. 



Often planted in lawns, where it multiplies rapidly, and occasionally escapes. 

 Los Angeles, Davidson in 1892. In the Humboldt Bay region it is said to be "firmly 

 established everywhere," Chandler in 1901. Native of Europe. 



^''Doubtfully referred to X. chinensis Mill, by Millsp. & Sherff in Field Mus. Nat. 

 Hist. Publ. 204:19. 1919. Our cockleburs are too seldom collected and too little 

 studied to permit their distribution to be properly defined. They are unhappily 

 abundant, and always have the appearance of introduced weeds. 



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