Hoary Cress, AKA Whitetop
(Cardaria draba & Cardaria pubescens (L.) Desv.)
Hoary cress, commonly known as little whitetop, has arrowhead-shaped leaves, and white 4-petal flowers.
A hoary cress seedling is a cluster of long, slightly serrated leaves.
Flowers will appear as small blue or purple balls before flowering out into many clustered white, 4-petaled flowers.
Hoary cress can be identified by the distinct arrowhead-shaped leaves clasping the stem.