Toxicological Trivia from December 17, 2014: A wide variety of plants have the ability to accumulate nitrates. However, the accumulation of this compound to potentially toxic levels is casual because it depends on the synchronized action of a set of variables from which play an important role: plant type, environmental conditions, soil fertility and growth stage forage. Within the accumulators of nitrates and toxicity associated with cases of weeds are the following. Which one is the brush photo?a) Sorghum Aleppo;b) Yuyo Colorado;c) Cardus marianus.

Correct answer: c. Read more in Usda page.