White flower with a yellow center sitting atop a stone wall

Close up of a small purple flower with a few green leaves in the…

Close up of a plant with green leaves and purple flowers

Small plant in the middle of a desert

Tree trunk with lichen growing on it

Black-eyed Susan (Rudbeckia hirta) with its bright yellow petals and…

Close up of a tree branch with brown leaves on it

Yellow bird&#39;s foot trefoil flower with water droplets on it

Close up of a bay leaf on a tree