Global Menu

  • Neon Science
  • Data Portal
  • Biorepository
  • NSF NEON | Open Data to Understand our Ecosystems
  • Biorepository Data Portal

  • Search
    • Sample search
    • Map search
    • Dynamic Species List
    • Taxonomic Explorer
  • Images
    • Image Browser
    • Image Search
  • Checklists
    • Research Sites - Invertebrates
    • Research Sites - Plants
    • Research Sites - Vertebrates
  • Sample Use
    • Sample Use Policy
    • Sample Request
    • Data Usage Policy
  • Additional Information
    • Tutorials and Help
    • About NEON
    • NEON Data Portal
    • ASU Biocollections
    • About Symbiota
  • Getting Started
Login New Account Sitemap
Asclepias verticillata L.  
Family: Apocynaceae
whorled milkweed
[Asclepias galioides Kunth]
Asclepias verticillata image
Morton Arboretum  
  • Gleason & Cronquist
  • Web Links
Vascular plants of NE US and adjacent Canada
Stems slender, erect from a cluster of fibrous roots, 2-5 dm, simple to the infl, pubescent in lines; lvs very numerous in whorls of 3-6, narrowly linear, 2-5 cm נ1-2 mm, revolute; umbels several from the upper nodes; peduncles 1-3 cm; fls white or greenish; cor-lobes 4-5 mm; hoods somewhat divergent, 1.5-2 mm, about equaling the gynostegium, their margins entire; horns subulate, much surpassing the hoods, inflexed over the gynostegium; fr slender, erect on erect pedicels, 7-10 cm; 2n=22. Fields, roadsides, upland woods, and prairies; Mass. to Fla., w. to Sask., Kans., and Ariz. June-Aug.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
  • BOLD Systems - Barcode of Life Data Systems
  • Encyclopedia of Life
  • Flora of North America
  • Google Images
  • Google Search Engine
  • International Plant Names Index
  • NCBI - National Center for Biotechnology Information
  • USDA PLANTS Database
  • W3Tropicos
Asclepias verticillata
Open Interactive Map
Asclepias verticillata image
Morton Arboretum  
Asclepias verticillata image
Morton Arboretum  
Asclepias verticillata image
Morton Arboretum  
Asclepias verticillata image
Morton Arboretum  
Asclepias verticillata image
Morton Arboretum  
Asclepias verticillata image
Morton Arboretum  
Asclepias verticillata image
Robert Sivinski  
Asclepias verticillata image
Click to Display
9 Total Images
NSF NEON | Open Data to Understand our Ecosystems The National Ecological Observatory Network is a major facility fully funded by the National Science Foundation. Any opinions, findings and conclusions or recommendations expressed in this material do not necessarily reflect the views of the National Science Foundation.