![Common milkweed or butterfly flower (Asclepias syriaca) is a poisonous perennial herb native to North America (Canada, USA and Mexico). Inflorescence Stock Photo - Alamy Common milkweed or butterfly flower (Asclepias syriaca) is a poisonous perennial herb native to North America (Canada, USA and Mexico). Inflorescence Stock Photo - Alamy](https://c8.alamy.com/comp/2FKTTGN/common-milkweed-or-butterfly-flower-asclepias-syriaca-is-a-poisonous-perennial-herb-native-to-north-america-canada-usa-and-mexico-inflorescence-2FKTTGN.jpg)
Common milkweed or butterfly flower (Asclepias syriaca) is a poisonous perennial herb native to North America (Canada, USA and Mexico). Inflorescence Stock Photo - Alamy
![Common Milkweed Fact Sheet - Signs of the Seasons: A New England Phenology Program - University of Maine Cooperative Extension Common Milkweed Fact Sheet - Signs of the Seasons: A New England Phenology Program - University of Maine Cooperative Extension](https://extension.umaine.edu/signs-of-the-seasons/wp-content/uploads/sites/6/2013/09/Asclepias-syriaca-9.jpg)
Common Milkweed Fact Sheet - Signs of the Seasons: A New England Phenology Program - University of Maine Cooperative Extension
![Suitability of native milkweed (Asclepias) species versus cultivars for supporting monarch butterflies and bees in urban gardens [PeerJ] Suitability of native milkweed (Asclepias) species versus cultivars for supporting monarch butterflies and bees in urban gardens [PeerJ]](https://dfzljdn9uc3pi.cloudfront.net/2020/9823/1/fig-1-full.png)
Suitability of native milkweed (Asclepias) species versus cultivars for supporting monarch butterflies and bees in urban gardens [PeerJ]
![50 Swamp Milkweed Seeds (Asclepias Incarnata) for U.S. & Canada 2023 - Florida Native - Free Shipping - Johnny Butterflyseed 50 Swamp Milkweed Seeds (Asclepias Incarnata) for U.S. & Canada 2023 - Florida Native - Free Shipping - Johnny Butterflyseed](https://www.johnnybutterflyseed.com/wp-content/uploads/2023/07/Swamp-Milkweed.jpg)
50 Swamp Milkweed Seeds (Asclepias Incarnata) for U.S. & Canada 2023 - Florida Native - Free Shipping - Johnny Butterflyseed
![Asclepias Syriaca, Common Milkweed, Butterfly Flower, Silkweed, a Honey Plant Native To Canada Considered Invasive Species in Stock Image - Image of invasive, silkweed: 190431823 Asclepias Syriaca, Common Milkweed, Butterfly Flower, Silkweed, a Honey Plant Native To Canada Considered Invasive Species in Stock Image - Image of invasive, silkweed: 190431823](https://thumbs.dreamstime.com/z/asclepias-syriaca-common-milkweed-butterfly-flower-silkweed-honey-plant-native-to-canada-considered-invasive-species-europe-190431823.jpg)
Asclepias Syriaca, Common Milkweed, Butterfly Flower, Silkweed, a Honey Plant Native To Canada Considered Invasive Species in Stock Image - Image of invasive, silkweed: 190431823
![Asclepias variegata (Redwing Milkweed, White-Flowered Milkweed, White Milkweed) | North Carolina Extension Gardener Plant Toolbox Asclepias variegata (Redwing Milkweed, White-Flowered Milkweed, White Milkweed) | North Carolina Extension Gardener Plant Toolbox](https://s3.amazonaws.com/eit-planttoolbox-prod/media/images/Asclepias_variegata_ccby0.jpg)