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Asclepias syriaca - Common Milkweed


This is a stout plant that grows from 3 to 7 feet tall.  It is usually unbranched and hairy.  The leaves are opposite, stalked, oblong to ovate to elliptic, hairy beneath, and 4 to 6 inches long.  The flowers are purple to greenish, and the pods are spiny and erect.

This plant contains cardiac glycosides that are absorbed by Monarch butterfly larvae, making larvae and adults toxic to predators.

Common Milkweed flowers from June to August.  It is frequently found in moist woods, wet areas, and stream banks.

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  • Home
  • Animals
    • Birds >
      • Avian Taxonomy
      • Bird Species Profiles
    • Mammal Species Profiles
    • Reptiles
    • Amphibians >
      • Frog and Toad Species Profiles
    • Fish
    • Arthropods >
      • Arthropod Species Profiles
  • Plants
    • Native Plant Societies
    • Eastern Plant Identification Guide
  • Fungi
    • Fungi Species Profiles
  • Protists
  • Nature Products Store
  • Cell Phone Ringtones
  • Madbird Feeder Cam
  • Ramblings of the Madbird Biologist
  • Bird Videos
  • News in Science
  • Nature Inspired Recipes
  • An Introduction to Scientific Classification and Naming
  • Birds in the Classroom
  • Resources
  • About Me