Wildflowers of the United States

Whorled Milkweed - Asclepias verticillata

Genus Common Name: Milkweed

Native Status: Native

Dicot Perennial Herb

Asclepias verticillata - Whorled Milkweed. Asclepias verticillata has the typical milkweed blossom shape, but has very narrow leaves in whorls of 3 to 6 up the stem. The plant is normally erect; this specimen was hanging horizontally over a road bank.

Journal Articles Referencing Milkweed

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Distribution of Asclepias verticillata in the United States and Canada:

Map courtesy of The Biota of North America Program.
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Site: Gordon County, GA Date: 2009-August-16	Photographer: Gerald C Williamson Nikon D60 1/200f/8 ISO200 Tamron SP 90MM f/2.8 AF Macro 90mm (135 equiv)
Asclepias verticillata has the typical milkweed blossom shape

Site: Gordon County, GA Date: 2009-August-16	Photographer: Gerald C Williamson Nikon D60 1/200f/8 ISO200 Tamron SP 90MM f/2.8 AF Macro 90mm (135 equiv)
Whorled milkweed has the typical flower clusters at the end of the stem, but unlike most milkweeds, has very narrow leaves, usually less than .1" wide. The leaves are in whorls of 3 to 6 all the way up the stem. It is usually vertical; this specimen was hanging over a roadbank.
Click on the photo for a larger image

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Asclepias verticillata initially published on USWildflowers.com 2009-08-16; Updated 2015-06-25

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Code Update 20230302