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  • Dicotyledonae
  • Clements, E. S.
  • Clements, F. E.
  • Clements, E. S.
  • Clements, F. E.
  • Colorado
  • North America
  • United States
  • Colorado
  • North America
  • United States
  • 1900s
  • NMNH - Botany Dept.
  • Dicotyledonae
  • Dicotyledonae
  • Gentianales
  • Gentianales
  • Apocynaceae
  • Apocynaceae
  • Asclepias pumila (A. Gray) Vail
  • Asclepias pumila (A. Gray) Vail