Sorrel is a slender herbaceous perennial plant about 60 centimetres (24 in) high, with roots that run deep into the ground, as well as juicy stems and edible, arrow-shaped (sagittate) leaves. The leaves, when consumed raw, taste like a sour green apple candy.ommon sorrel or garden sorrel (Rumex acetosa), often simply called sorrel, is a perennial herb in the family Polygonaceae.
Of all the essential nutrients, nitrogen is required by plants in the largest quantity and is most frequently the limiting factor in crop productivity. 1  In plant tissue, the nitrogen content ranges from 1 and 6%.
Best Answer: a limiting factor is a substance, external factors (sunlight, humidity etc) that have a key role in the development of a certain organism or a metabolic pathway/process. light intensity is a limiting factor of photosynthesis because essentially this process is the fixation of light's energy into an organic compound (sugars) by transforming it to chemical energy. Source(s): biotechnologist