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<br /> <br />./- <br />-5- Gravel Breaks 1164 <br />5. Endangered Plants and Animals <br />(Species names to be included as reliable information becomes <br />available). <br />6. Major Poisonous Plants to Livestock That May Cause Poisoning <br /> <br /> <br />Season Animals <br />Common Scientific Name Dangerous Affected <br />Name <br />broom snakeweed Xanthocephalum when forage cattle- <br />sarothrae is scarce sheep <br />Effect and symptoms <br />Poisoning is not common but will occur on overgrazed ranges. Causes <br />abortion in cattle or may produce weak underweight calves. Losses are <br />sporadic and will occur when 10 to 20 percent of the body weight of green <br />material is consumed in 1/2 to 20 weeks. <br />Season Animals <br />Common Scientific Name Dangerous Affected <br />Name <br />threadleaf groundsel Senecio longilobus <br />early spring <br />when forage is <br />short or on <br />over grazed <br />ranges. <br />cattle S horses <br />Normally will <br />not affect <br />sheep if a <br />supplement is <br />fed on dry <br />range during <br />the spring. <br />Effect and symptoms <br />Signs may not appear until 6 months or more after plant is eaten. The best <br />prevention is proper range use. Symptoms are progressive and effects are <br />cumulative. Losses are sporadic. Degeneration of the liver results. <br />Depression, weakness, diarrhea, darkly stained urine may be observed. <br />Animals may die quickly or wander aimlessly. <br />7. Locations of Typical Examples of the Si[e <br />a. West side of Fountain Creek, 8 miles South of Fountain, El Paso <br />County. <br />b. Along the North and South sides of the Arkansas River, Otero <br />County. <br />s <br />~_ <br />