FLOWERING PLANTS AND FERNS OF ARIZONA 1001 



to 10.000 feet, open coniferous forest, August and September. Colo- 

 rado to New Mexico, southeastern Arizona, and Chihuahua. 



2. Artemisia gnaphalodes Nutt., Gen. PI. 2: 143. 1818. 



Artemisia albula Woot., Contrib. U. S. Natl. Herbarium 16: 

 193. 1913. 



Kaibab Plateau and Grand Canyon ("Coconino Count}') to the 

 mountains of Graham, Cochise. Santa Cruz, and Pima Counties, 2.700 

 to 7.300 feet, dry slopes and canyons, often on limestone. August to 

 November . Southern Canada to Missouri. Texas. Arizona. Cali- 

 fornia, and Mexico. 



Cudweed-sagewort. Artemisia aUmla is a form with much-branched 

 inflorescence and small heads. 



3. Artemisia ludoviciana Nutt., Gen. PL 2: 143. 1818. 



Artemisia sUtneola Osterhout. Torrev Bot. Club Bui. 28: 645. 

 1901. 



Grand Canyon (Coconino County) and southern Apache County 

 to the mountains of Cochise and Pima Counties. 2.400 to 8,000 feet, 

 dry slopes and canyons, often in open pine forests. August to October. 

 Montana and Washington to Texas. Arizona. California, and northern 

 Mexico. 



Artemisia mexhcana Willd., distinguished by the narrow elongate 

 lobes (2 to 4 mm. wide) of at least the lower leaves, is probably not 

 specifically distinct from A. Iv.doriciana. This form has been col- 

 lected in Apache. Navajo, Coconino. Greenlee, and Santa Cruz 

 Counties. Artemisia \vAonc\ana itself is only artificially distinguished 

 from A. gnaphalodes by its glabrate upper leaf surface, and inter- 

 mediate specimens are too common. Artemisia sulcata Rydb. is ap- 

 parently a form of A. mexieana. 



4. Artemisia carruthii Wood in Carruth, Kansas Acad. Sci. Trans. 5: 



51. 1877. 



White Mountains (Apache County). Hopi Indian Reservation 

 (Navajo County;, Grand Canyon and vicinity of Flagstaff (Coconino 

 County), mostly 6.000 to 8,000 feet, open pine forest. August to Octo- 

 ber. Missouri to Texas, west to Utah and Arizona. 



The var. wrigktii (A. Gray) Blake (.4. wrigktii A. Gray), differing 

 from the typical form only in having the upper surface of the leaves 

 glabrate and green, has a wider range in Arizona, from the Carrizo 

 Mountains (Apache County) to Hualpai Mountain 'Mohave County . 

 also in the White. Pinaleno. Pinal, and Chiricahua Mountains 

 (Greenlee. Graham. Pinal, and Cochise Counties). 



5. Artemisia biennis Willd.. Phytogr. 11. 1794. 



Near Flagstaff, Coconino County. 7.200 feet (Pearson 102), Gila 

 River bed. Sacaton. Pinal County {Harrison 1969), June to Septem- 

 ber. Canada to Xew Jersey, Kentucky, Missouri. Arizona, and 

 California, native in the western part of this range, elsewhere natural- 

 ized. 



6. Artemisia annua L.. Sp. PL 847. 1753. 



Santa Catalina Mountains. Pima County, about 6,000 feet, road- 

 side. August (Harrison and Kearney 8134). A weed here and there in 

 the United States; naturalized from Europe. 



Sweet wormwood. 



