Common ragweed illustration (also called bitterweed or bloodweed) showing plant and flowers, Ambrosia sp. Weed illustration ©2002 Carolina Biological Supply Company.

This botanical art image was drawn by Alison Schroeer of Schroeer Scientific Illustration, to show a common allergen species.

Botanical illustration artwork drawn with colored pencils on xerographic drafting film and Adobe Photoshop. This biological drawing is in full color. Botanical, medical, and other natural science illustrations are available on commission. Please contact us to discuss a drawing or painting, and we can create biological art to your specifications.