Content on this page requires a newer version of Adobe Flash Player.

Get Adobe Flash player

Butterfly Weed

| Aquatic Plants, Butterfly, Invasive
30 Nov 2011

>

Showy Milkweed (Asclepias speciosa)  Photo by Larry Halverson
This pretty milkweed is not listed in BC but considered invasive. Unlike other milkweeds it can found in wetlands.   This one was found blooming on August 9th by the wetlands near Athalmer. 
Showy milkweed is toxic. It possesses moderate concentrations of cardenolides, and can poison or even kill grazing animals. However this weed has saved the lives of many Monarch Butterflies. Monarchs feed on the milkweed and toxins they ingest gives the  butterfly its defence. Most predators have learned that the monarch butterfly makes a poisonous snack. So the plant is also called the Butterfly weed.

Leave a Reply

You must be logged in to post a comment.

Columbia Wetlands Stewardship Partners