Common sorrel or garden sorrel (Rumex acetosa), often simply called sorrel, is a perennial herb in the family Polygonaceae. Other names for sorrel include spinach dock and narrow-leaved dock. It is a common plant in grassland habitats and is cultivated as a garden herb or salad vegetable (pot herb).

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. (source)

Can guinea pigs eat sorrel?

They can nibble it but that’s about it. Don’t give them too much

For more foods that guinea pigs can and can’t eat, check out our guinea pig food list.