Apocynum

• Choose this species
  A. androsaemifolium

  1a. Corolla pink or white and pink-striped, 6–10 mm long, its lobes spreading or recurving 
 [Fig. 359]; flowers spreading to nodding; seeds 2.5–3 mm long; leaf blades wide-spreading 
to drooping
• Choose this species
  A. cannabinum

  1b. Corolla white, green-white, or yellow, 3–6 mm long, its lobes erect or slightly spreading [Fig. 360]; flowers ascending to spreading; seeds 4–6 mm long; leaf blades erect to spreading

 Show photos of:   Each photo represents one species in this genus.