Yellow wood sorrel (Oxalis stricta) proves that not all dainty flowers in the garden are darlings. Also known as sour grass, juicy fruit or pickle plant, yellow wood sorrel is a quickly spreading weed ...

These weeds flower in a number of colors, but many have yellow blooms. Learn about 13 common weeds with yellow flowers you might be noticing around your yard this spring.

For those gardeners not really into genus/species names, it might better be known as yellow wood sorrel. I’ve even heard of this weed called sheep sorrel, sour-grass, lemon clover or toad sorrel.

Black medic is a demure, clover-like weed with small yellow flowers that’s holding an invisible bullhorn, shouting, “What’s a girl got to do to get some nitrogen over here?” ...

That yellow flower/weed that's blooming in great profusion now in untended fields and roadsides all over central Pennsylvania is yellow rocket, a rampantly seeding member of the mustard family.