Species of flowering plant
Asclepias speciosa , West Eugene wetlands, Oregon
Asclepias speciosa is a milky-sapped perennial plant in the dogbane family (Apocynaceae ), known commonly as the showy milkweed and is found in the western half of North America.[ 1] [ 2]
^ (1) Stevens, Michelle (May 30, 2006). "Plant guide for Asclepias speciosa " (PDF) . Washington, D.C.: United States Department of Agriculture : Natural Resources Conservation Service . Archived (PDF) from the original on July 12, 2021. Retrieved July 12, 2021 . (2) Young-Mathews, A.; Eldredge, E. (2012). "Plant fact sheet for showy milkweed (Asclepias speciosa)" (PDF) . United States Department of Agriculture : Natural Resources Conservation Service , Corvallis Plant Materials Center, Oregon, and Great Basin Plant Materials Center, Fallon, Nevada . Archived (PDF) from the original on April 1, 2021. Retrieved July 12, 2021 . (3) "Asclepias speciosa" . Washington, D.C.: United States Department of Agriculture : United States Forest Service . Archived from the original on March 7, 2021. Retrieved July 12, 2021 .
^ Wiese, Karen (2000). "Showy Milkweed: Asclepias speciosa " . Sierra Nevada wildflowers: a field guide to common wildflowers and shrubs of the Sierra Nevada, including Yosemite, Sequoia, and Kings Canyon National Parks . Helena, Montana : Falcon Publishing, Inc. p. 50. ISBN 0585362831 . LCCN 00022385 . OCLC 47011272 . Retrieved July 12, 2021 – via Internet Archive .