FLOWERING PLANTS AND FERNS OF ARIZONA 497 



10. Desmodium grahami A. Gray, PL Wright. 2: 48. 1853. 



Me i bom ia grahami Kuntze, Rev. Gen. PL 1: 198. 1891. 



Navajo and Coconino Counties to Cochise and Pima Counties, 

 4,500 to 8,000 feet, often in pine woods, August and September. 

 Texas to Arizona and Mexico. 



11. Desmodium batocaulon A. Gray, PL Wright. 2: 47. 1853. 



Meibomia batocaulis Kuntze, Rev. Gen. PL 1: 197. 1891. 



Graham, Cochise,* Santa Cruz, and Pima Counties, 3,500 to 6,000 

 feet, common, often in pine woods, June to September. Southern 

 New Mexico and Arizona, and northern Mexico. 



12. Desmodium arizonicum S. Wats., Amer. Acad. Arts and Sci. Proc. 



20: 363. 1885. 



Meibomia arizonica Vail, Torrey Bot. Club Bui. 19: 117. 1892. 



Gila, Cochise, Santa Cruz, and Pima Counties, 4,000 to 8,000 feet, 

 frequent, especially in dry pine woods, July to September. Southern 

 New Mexico and Arizona, and northern Mexico. 



13. Desmodium cinerascens A. Gray, PL Wright. 2: 48. 1853. 



Meibomia cinerascens Kuntze, Rev. Gen. PL 1: 197. 1891. 

 Meibomia canbyi Schindler, Repert. Spec. Novarum Regni 

 Veg. 20: 155. 1924. 



Cochise, Santa Cruz, and Pima Counties, 4,000 to 6,000 feet, 

 frequent on dry sunny slopes, August and September, type of Meibo- 

 mia canbyi from the Santa Catalina Mountains (Pringle in 1881). 

 Southern Arizona and northern Mexico. 



The numerous stems, hard and almost woody toward the base, 

 often form large clumps and reach a height of 1.5 m. (5 feet). 



14. Desmodium metcalfei (Rose and Painter) Kearney and Peebles, 



Wash. Acad. Sci. Jour. 29: 485. 1939. 



Meibomia metcalfei Rose and Painter, Bot. Gaz. 40: 144. 1905. 



A collection at Cave Creek, Chiricahua Mountains, Cochise County 

 (Eggleston 11027), was identified by A. K. Schindler as of this species, 

 otherwise known only from southwestern New Mexico. 



49. VICIA. Vetch 



Plants herbaceous, annual or perennial; stems leafy, weak, climbing 

 or trailing; leaves pinnate, ending in a tendril; flowers axillary, solitary 

 or in racemes; stamens all, or 9 of them, united below; pods narrow, 

 flat, 2-valved, dehiscent. 



Most of the vetches are excellent forage plants, and several Old 

 World forms are much cultivated in the United States for green 

 manure and hay, also as cover crops in orchards. The native species 

 do not withstand close grazing. 



Key to the species 



1. Flowers mostly in 2's in the upper axils; peduncle almost none; pedicels not more 

 than 3 mm. long; calyx teeth somewhat shorter to somewhat longer than 

 the tube, setaceous-acuminate; corolla 10 to 20 mm. long, deep rose purple; 

 leaflets mostly oblong-oblanceolate, truncate or emarginate, mucronate or 

 cuspidate 1. V. sativa. 



