Summary ²

Asclepias quadrifolia is a species of milkweed commonly called fourleaf milkweed or whorled milkweed. The plant occurs in the eastern United States and Canada.

Sources and Credits

1. (c) dogtooth77, some rights reserved (CC BY-NC-SA), http://www.flickr.com/photos/53817483@N00/3613042976
2. (c) Wikipedia, some rights reserved (CC BY-SA), https://en.wikipedia.org/wiki/Asclepias_quadrifolia

More Info

• iNat taxon page
• Biodiversity Heritage Library
• BOLD Systems BIN search
• eFloras.org
• Flora of North America (beta)
• Global Biodiversity Information Facility (GBIF)
• Go Botany
• HOSTS - a Database of the World's Lepidopteran Hostplants
• IPNI (with links to POWO, WFO, and BHL)
• Maryland Biodiversity Project
• NatureServe Explorer 2.0
• SEINet Symbiota portals
• Tropicos
• USDA PLANTS database
• VASCAN by Canadensys
• World Flora Online

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