NATIVE WOODY PLANTS OF THE UNITED STATES Qg 



an indicator of overgrazing; direct seeding experiments with this species were 

 unsuccessful in New Mexico ; not poisonous to livestock. 



Observations: An important food of sage grouse; important winter food for 

 elk, bighorn. Of high rank as forage for stock, the forage value increasing 

 southward. 



Artemisia nova Nels. Small sagebrush. 



A. tridentata nova (Nels.) Hall and Clem. 

 Range : 7, 8, 9, 10, 11, 13. 

 Site : Dry, sun. 

 Fruit : Achene. 



A small shrub ; often occurs on shallow, stony soils. Of importance southward 

 as forage for livestock. 



Artemisia parishii Gray. 



A. tridentata parishii (Gray) Hall and Clem. 

 Range: 9, 10. 

 Site : Dry, sun. 

 Fruit: Achene. 



A small to usually large shrub ; very much like A. tridentata and perhaps not 

 specifically distinct ; resembles that species in practically all ecological aspects. 

 For browse value refer to A. tridentata. 



Artemisia petrophila, see Artemisia bigelovii. 



Artemisia rigida (Gray) Nutt. Stiff sagebrush. 



A. triflda rigida Nutt. 

 Range: 7, 8, 12. 

 Site: Dry, sun. 

 Fruit: Achene. 



A small shrub ; very often occurs on lava outcrops. 



A locally valuable browse plant, particularly palatable to horses ; fair sheep 

 forage. 



Artemisia rothrockii Gray. 



A. tridentata rothrockii (Gray) Hall and Clem. 

 Range : 4, 7, 8, 9, 10, 12, 13. 

 Site : Dry, well-drained, sun. 

 Fruit: Achene. 



A small shrub, usually confined to higher zones in the mountains. Browse 

 value for livestock similar to that of A. tridentata. 



Artemisia spinescens Eaton. Bud sagebrush. 



Picrothamnus desertorum Nutt. 

 Range: 7, 8, 9, 10, 11, 12. 

 Site : Dry, well-drained, sun. 

 Fruit: Achene. 



A small, spiny, much-branched, rigid shrub with crowded stems; occurs on 

 alkaline soil and indicates alkali in the soil ; root system very extensive ; ex- 

 tremely resistant to drought and overgrazing. An important forage for live- 

 stock, but poisonous or fatal to calves when eaten in quantity. 



Artemisia tridentata Nutt. (pi. 4, B). Big sagebrush 



Range : 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15. 



Site : Dry, well-drained, sun. 



Fruit : Achene, available in October. 



A small to large shrub, or in very good soil with plenty of water, a small 

 tree; root system two storied with shallow fibrous, and deep-spreading roots; 

 an indicator of deep soils largely free from alkali ; seldom occurs on granitic 

 soils; forms root sprouts to some extent; fairly rapid growing; direct seeding 

 experiments with this species in New Mexico were unsuccessful ; germination of 

 seed 35 percent or less. 



Stomach records: Dusky grouse, sage grouse; black-tailed deer. Observa- 

 tions: Columbian sharp-tailed grouse; mule deer, bighorn. A most important 

 stock browse of special value in autumn and winter; variously reported as 

 poor to excellent forage; however, it enables stockmen 'to carry enormous 

 numbers of cattle through the winter months. Reported as mildly poisonous 

 to sheep and horses but there appears to be no direct evidence of its toxicity. 



Artemisia trifida, see Artemisia tripartita. 



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