My lawn was full of yellow color from the dandelions, but some other yellow could be found in the ditches and other wet area as the Marsh Marigolds are in bloom right now. A blossom can produce up to two hundred seeds and when its seed pod open, it forms a splash cup so that when a raindrop hits the wall of the seed cavity, the seeds are expelled. And as the plants are often growing in or near water, the seeds have a spongy tissue which allows them to float on the water so the seeds can wash up on land to grow.
Golden Yellow from the Marsh Marigolds