Butterfly Weed Asclepias tuberosa Linnaeus subsp. tuberosa    Synonyms: Butterfly Milkweed, Butterflyweed.
Kingdom Plantae   >   Division Tracheophyta   >   Class Magnoliopsida   >   Order Gentianales   >   Family Apocynaceae   >   Genus Asclepias   

Status:

Butterfly Weed is an unmistakable, locally common milkweed that can be found growing across most of Maryland, and grows throughout the eastern and southern United States. Butterfly Weed prefers open dry field habitats but can also be found growing along wooded edges. Bloom times for Butterfly Weed in the Maryland Biodiversity Project database range from 6/10 through 9/13.

Description:

Butterfly Weed is easily identified by the bright coloration of the flowers. Most plants are a deep orange but bright yellow flowers can also be encountered. Butterfly Weed has clear sap, in contrast to the milky sap that is typically found in other milkweed species.

Relationships:

Monarch and other caterpillars, including Queens and Grey Hairstreaks often feed on the leaves of Butterfly Weed.

This summer-long bloomer is a favored plant for many native pollinators, including numerous species of bees, wasps, and butterflies, as well as hummingbirds.

There are 207 records in the project database.

View species at Maryland Plant Atlas

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Butterfly Weed in Dorchester Co., Maryland (7/8/2016). Photo by Wayne Longbottom. (MBP list)

Butterfly Weed in Prince George's Co., Maryland (6/29/2017). Photo by Bill Hubick. (MBP list)

Butterfly Weed in Worcester Co., Maryland (8/10/2014). Photo by Wayne Longbottom. (MBP list)

Butterfly Weed in flower in Caroline Co., Maryland (6/30/2016). Photo by Wayne Longbottom. (MBP list)

Butterfly Weed in Dorchester Co., Maryland (7/8/2016). Photo by Wayne Longbottom. (MBP list)

Butterfly Weed in Dorchester Co., Maryland (7/12/2020). (c) Ashley M Bradford, some rights reserved (CC BY-NC). Photo by Ashley Bradford. (MBP list)

Butterfly Weed blooming in Washington Co., Maryland (6/19/2014). Photo by Kimberly Booth. (MBP list)

Butterfly Weed in Dorchester Co., Maryland (7/12/2020). (c) Ashley M Bradford, some rights reserved (CC BY-NC). Photo by Ashley Bradford. (MBP list)

Butterfly Weed in Dorchester Co., Maryland (7/12/2020). (c) Ashley M Bradford, some rights reserved (CC BY-NC). Photo by Ashley Bradford. (MBP list)

Butterfly Weed in Worcester Co., Maryland (7/26/2013). Photo by Jim Stasz. (MBP list)

Butterfly Weed blooming in Anne Arundel Co., Maryland (6/30/2015). Photo by David Illig. (MBP list)

Butterfly Weed in seed in Allegany Co., Maryland (8/26/2017). Photo by Kimberly Booth. (MBP list)

Butterfly Weed with seed pod in Washington Co., Maryland (9/15/2013). Photo by Jim Stasz. (MBP list)

Butterfly Weed in Caroline Co., Maryland (6/20/2017). (c) Wayne Longbottom, some rights reserved (CC BY-NC). Photo by Wayne Longbottom. (MBP list)

Butterfly Weed blooming in Baltimore City, Maryland (6/20/2015). Photo by Bill Hubick. (MBP list)

Butterfly Weed in Howard Co., Maryland (7/19/2017). Collected and processed by Helen Lowe Metzman. Photo by USGS PWRC. (MBP list)

Butterfly Weed in bloom in Howard Co., Maryland (6/20/2017). Collected and processed by Helen Lowe Metzman. Photo by USGS PWRC. (MBP list)


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