Aphanes arvensis, known as parsley-piert, is a sprawling, downy plant common all over the British Isles where It grows on arable fields and bare wastelands, particularly in dry sites. The short-stalked leaves have three segments each lobed at the tip. Flowers April–September. The tiny green flower has four sepals and no petals, the fruit is oval pointed. Stipules form a leaf-like cup, enclosing the flower. The name of parsley piert has nothing to do with parsley. It is a corruption of the French perce-pierre, meaning 'stone-piercer' and was given to the plant because of its habit of growing in shallow, stony soil and emerging between stones. As in the case of saxifrage (from the Latin meaning 'stone-breaker') it was wrongly assumed that the plant could pierce stones; and it was thought tha