The Stairwell Gallery at Gunn Memorial Library in Washington is presenting an exhibit, “The Beauty of Botany,” through July 9.

The show features a special show of botanical watercolors by international award-winning artist Betsy Rogers-Knox.

The show includes her artwork “Milkweed through the Seasons,” shown last February in London at the Royal Horticultural Botanical Art Show, where it won the Silver Gift Award.

The series of paintings that dramatizes the intertwining lives of the milkweed and the monarch butterfly whose larvae consume only milkweed leaves.

As milkweeds are eliminated by herbicides, land development and climate change, monarch population in the eastern U.S. has diminished by 90 percent over the past 20 years.

In addition to her recent exhibition in London, her work has appeared throughout the U.S.

She attended the School of Visual Arts in New York and Garland College in Boston, and holds a certificate in botanical illustration from the New York Botanical Garden.

She has taught botanical illustration at conferences and workshops throughout the country and teaches drawing and watercolor in Bethlehem, where she lives.

The Wykeham Road library is open Mondays and Fridays from 9:30 a.m. to 5 p.m., Tuesdays and Thursdays from 9:30 a.m. to 8 p.m. and Saturdays from 9:30 a.m. to 3 p.m.

For more information, call 860-868-7586.